Chemical Bond Questions and Answers

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Chemical Bond Questions and Answers

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Name each of the following compounds. a. Fe(C2H3O2)3 b. BrF c. K2O2 d. SiBr4 e. Cu(MnO4)2 f. CaCrO4
Describe the bonding in these molecules in terms of the hybridization of C and N and the types of bonds between carbon and nitrogen. If there are any lone pairs, describe what type of orbital conta...
Classify the bonding in each of the below molecules as ionic, polar covalent, or nonpolar covalent. a. H2 b. K3P c. NaI d. SO2 e. HF f. CCl4 g. CF4 h. K2S
Explain briefly how substances with ionic bonding differ in properties from substances with covalent bonding.
Predict whether each of the following bonds is expected to be covalent, polar covalent, or ionic. S-S; S-H; S-K
The compound contains both ion and covalent bonds. Draw the Lewis structure for the compound. Lithium aluminum hydride, LiAlH_4.
The compound contains both ion and covalent bonds. Draw the Lewis structure for the compound. Sodium borohydride, NaBH_4.
How does chemical bonding occur? What are the various types of chemical bonding? How are they important for life? What are the chemical bondings properties?
Classify the bonding in each of the following molecules as ionic, polar covalent, or nonpolar covalent.
List all the possible bonds that can occur between the elements P, Cs, O, and H. Predict the type of bond (ionic,covalent, or polar covalent) one would expect to form for each bond.
One reason suggested for the instability of long chains of silicon atoms is that the decomposition involves the following transition state. The activation energy for such a process is 210 kJ/mol, w...
In the given pair, which of the following compounds is stable, and explain why the other compound is unstable? NF_3 or NBr_3
What do we mean by a chemical bond in general? What does the bond energy tell us about the strength of a chemical bond? Name the principal types of chemical bonds.
Describe how the atoms in covalent molecules achieve electron configurations similar to those of noble gases. How does this differ from the situation in ionic compounds?
The percent ionic character/percent covalent character varies from compound to compound. Choose the compound with the highest covalent character and the one with the highest ionic character from Pb...
What do we mean by the bond energy of a chemical bond?
Some plant fertilizer compounds are (NH_4)_2SO_4, Ca_3(PO_4)_2, K_2O, P_2O_5, and KCl. Which of these compounds contain both ionic and covalent bonds?
Ions are produced when an atom gains or loses ________.
The atoms in a single bond can rotate about the internuclear axis without breaking the bond. The atoms in a double bond and a triple bond cannot rotate about the internuclear axis unless the bond i...
Why is the term sodium chloride molecule incorrect but the term carbon dioxide molecule is correct?
What is meant by a chemical bond?
Compare and contrast the bonding found in the H_2 (g) and HF (g) molecules with that found in NaF (s).
Which of the following statements are true of covalent, hydrogen, or disulfide bonds? Select all that apply. \\ \\ The element carbon only rarely forms covalent bonds. \\ Covalent bonds are formed...
Consider the following substances: sodium fluoride (NaF), chlorine monofluoride (ClF), hydrogen fluoride (HF), and fluorine (F2 ). List the intermolecular attractive forces in order of increasing s...
A china cup breaks when the ionic or covalent bonds are broken due to shock, stress, or some other influence. Even if such a cup were broken into two simple pieces, just putting the pieces back tog...
Camphor, C_{10}H_{16}O, are colorless crystals with a specific gravity of 0.990 at 25^\circ C, sublimes at 204^\circ C, insoluble in water and very soluble in alcohol and ether. Praseodymium chlo...
Look up the properties of NaCl and PCl3 in the Handbook of Chemistry and Physics. Why do we describe NaCl as an ionic compound and PCl3 as a covalent compound?
Describe the types of bonding in the given species sodium chlorate (NaClO3).
For each of the following, tell whether the bonding is primarily ionic or covalent. (a) Sodium and iodine in sodium iodide (b) Beryllium and the nitrate ion in beryllium nitrate (c) The carbon-ca...
[{Blank}]In each pair of bonds, indicate the more polar bond, and use \delta + and \delta - to show the direction of polarity in each bond. (a) C__O and C__N (b) N__Cl and C__S (c) P__H and P__N...
Identify the bond in the stated bonded pair that is likely to have the greater proportion of ''covalent character''. As--S or O--S
Identify the bond in the depicted bonded pair that is likely to have the greater proportion of ''covalent character''. Al--Cl or C--Cl
Identify the bond in the mentioned bonded pair that is likely to have the greater proportion of ''covalent character''. Li--O or H--O
Why does neon not form covalent bonds?
Describe the types of bonding in ammonium chloride, NH4Cl.
How many covalent bonds are normally formed by C?
How many covalent bonds are normally formed by N?
Sodium methoxide, NaOCH_3, contains both ionic and covalent bonds. Indicate which is which.
Indicate all the covalently bonded compounds below. a. NaCl b. CoBr3 c. CO2 d. BF3 e. ZnF
Identify the bonds in the given molecule as covalent, polar covalent, or ionic. BeF2
When carbon vaporizes at extremely high temperatures, the diatomic molecule C_2 is among the species present in the vapor. a) Write a Lewis formula for C_2. Does your Lewis formula of C_2 obey the...
How many sigma bonds and pi bonds are in methyl cyanide (CH3CN)?
How many bonds does each of the following elements form? A. Chlorine B. Potassium C. Phosphate D. Calcium
Classify the bonding between the following pairs of atoms as ionic, polar covalent, or nonpolar covalent. (a) K and O; (b) Br and I; (c) Na and H; (d) O and O; (e) H and O.
Compare and contrast nonpolar covalent bonds, polar covalent bonds, and ionic bonds. Give one example of each.
How many covalent bonds can be formed by atoms of carbon, oxygen, nitrogen, and hydrogen?
Pick the member of the below pair that you would expect to have the smaller bond angles, if different, and explain why. SF2 and SO2m
What are the differences between covalent bonds (both polar and nonpolar) and ionic bonds?
What kind of bonding (ionic or covalent) would you predict for the products resulting from the following combination of elements? (a) K + Cl_2 (b) C + O_2 (c) N_2 + O_2 (d) S + O_2
Classify the following compounds as ionic or covalent. a) Ca(NO_3)_2 b) H_2Se c) KNO_3 d) CaCl_2 e) H_2CO_3 f) NCl_3 g) Li_2O h) N_2H_4 i) SOCl_2
Predict whether the bonding between the following pairs of elements would be primarily ionic or covalent. Justify your answers. (a) Rb and Cl (b) N and O (c) Ca and F (d) N and S (e) C and F...
Based on the positions in the periodic table of the following pairs of elements, predict whether bonding between the two would be primarily ionic or covalent. Justify your answers. (a) Ca and Cl...
Name an element with which nitrogen would form: (a) a mostly ionic bond, (b) a polar covalent bond, and (c) a nonpolar covalent bond (other than another nitrogen atom). How did you determine...
Draw models representing an atom of carbon and a molecule of methane. How is methane different from chlorine?
Describe the circumstances under which one would expect a bond to exhibit 100% "covalent character" and 0% "ionic character." Give an example of two bonded atoms that would be predicted to exhibit...
Why do atoms of two non-metals generally form a compound by sharing valence electrons, rather than by transferring electrons, as in the formation of ionic compounds?
What are the primary factors on which we base a decision on whether the bonding in a molecule is better described in terms of overlap of pure atomic orbitals or overlap involving hybridized atomic...
Write the formula and tell if the given compound is ionic or covalent, acid or hydrate. S2O3
Write the formula and determine if the given compound is ionic or covalent, acid or hydrate. Lead (IV) dichromate
Which of the following species contains only covalent bonds? Explain your answer. A) AlF3 B) NH4NO3 C) H2SO4 D) K2Cr2O7
Describe the type and nature of the bonding that occurs between reactive metals and non-metals.
In covalent bond formation, electron sharing occurs between elements with relatively high EA and high IE. True or false?
Distinguish Ionic, Covalent, Hydrogen Bonding, and Van der Waals (Hydrophobic).
Given the electronegativity values of the following atoms, describe the characteristic of the chemical bond formed between them: O (3.5) and another O (3.5)
Which of the following contains both ionic and covalent bonds in the same compound? a. BaSO3 b. SrO c. HI d. MgS
Classify each of the following as either an ionic or molecular compound. CH4 Br2 CaCl2 KNO3 CH4O LiF Which is the best statement regarding molecular compounds?
Use the ball-and-stick model to answer the question about carbidopa, a drug used in combination with l-dopa to treat Parkinson's disease. Determine the hybridization around each carbon atom.
Provide the name for the following molecular geometry and the ideal bond angle(s).
Classify the following bonds as ionic, polar covalent, or nonpolar qualitatively based solely on each element's position on the periodic table. \\(a) S-S \\(b) Na-N \\ (c) O-I \\(d) S-Cl \\(e) Cu-Cl
Which of the following compounds contain ionic bonds? A. CH4 B. K2O C. Cl2 D. OF2
Is silicon hexachloride an ionic or a covalent compound?
When an ionic bond forms, which parts of the atom are directly involved?
Sally prepared a saturated solution of calcium hydroxide by dissolving excess solid in water. She told Emily that in this saturated solution, the amount of solid dissolves does not change, but ioni...
Which of the following is the most covalent? Explain. A. NaCl B. MgCl2 C. AlCl3 D. AlBr3
1. Which type of chemical bond involves the transfer of electrons? A. Ionic B. Polar covalent C. Nonpolar covalent 2. A polar covalent bond will form between which two atoms? A. Beryllium and fluor...
Is a bond between fluorine and chlorine more likely to be ionic or covalent?
Which highlighted bond in the given pair absorbs at a higher wavenumber?
Referring only to a periodic table, give the number of covalent bonds expected for each of these representative elements, for At
Write the net ionic equation for the following combinations Ag+, OH- Na+, OH- CO^2+, OH- Ag+, Cl- Ag+, SO4^2- BA^2+, SO4^2-
Which is a sigma bond? (A) Side-by-side overlap of the d orbitals (B) End-to-end overlap of p orbitals (C) S orbital overlapping with the side of a p orbital (D) Overlap of two d orbitals (E) P orb...
A phrase that applies to covalent bonding and not other kinds of bonds is _____. 1. charge attraction 2. great strength 3. electron-sharing 4. paired electrons 5. all of the above.
State the type of bonding you would expect from the following compounds or elements: A - ionic B - covalent C - metallic 1 - Srf_2 2 - I_2 3 - Cr 4 - Cl_2O 5 - CsBr
Compare & contrast polar electrostatic and Van der Waals attractions, chemical bonds/interactions: How are they similar? How do they differ?
Compare & contrast polar covalent vs ionic Bonds, chemical bonds/interactions: How are they similar? How do they differ?
What drives chemical bond formation? Explain in detail.
How many delocalized electrons are in triple bonds?
Describe the colors and the number of bonds for the following different atoms in the molecular model. A: Carbon B: Hydrogen C: Oxygen D: Chlorine
How many covalent bonds are there within a methanol molecule and water molecule?
Which of the following statements are true? A) The buildup of electron density between two atoms repels each nucleus, making the nuclei less stable. B) Bond energy is the minimum energy required...
Fill in any nonbonding valence electrons that are missing from the following structures:
Which atoms are most likely to make small covalently bonded molecules? a) Elements from groups 1 and 2. b) Elements from groups 2 and 14. c) Elements from groups 1 and 17. d) Elements from groups 1...
Use the Lewis theory to find the chemical formula for the compound formed between Rb and S.
What would happen if the secondary forces operating between molecules were as strong as covalent or ionic bonds?
Predict the bond angle for the H-C-N bond angle in (CH3)2NH and explain your prediction.
2) True or False? A triple covalent bond is counted as three electron groups.
1) True or False? An electron group can be either a lone pair or a covalent bond.
Identify the type of bond (ionic or covalent) in the following compound. A) ammonia (NH3) B) salt (NaCl) C) carbon tetrachloride (CCl4) D) hydrogen peroxide (H2O2) E) ozone (O3) F) ethylene (CH2=C...
What bond angles do you expect for the following? The O-S-O angle in SO4^2-
Metallic bonds occur between elements with relatively high IE and high EA. a. True b. False
What are likely formulas for the following substances? (a) CCl? (b) AlH? (c) CH?Cl2 (d) SiF? (e) CH3NH?
What is the difference between an ionic bind and a covalent bond?
What orbitals are used to form each of the C-C and C-H bonds in CH_3CH_2CH_3 (propane)? How many sigma bonds are present in this molecule?
How many covalent bonds are predicted for Br?
How many covalent bonds are predicted for Al?
Label each bond in the compound as ionic or covalent. NaOCH_3
Label each bond in the compound as ionic or covalent. NaNH_2
Label each bond in the compound as ionic or covalent. LiBr
Classify each of the following diatomic species as ionic, polar covalent, or non-polar covalent. 1. BrF 2. KF
A mixture is made up of 4 molecules of propanol and 5 formula units of Pb_3(PO_4)_4 \cdot 6H_2O. Why are the terms ''molecules'' and ''formula units'' used for the two substances? a) Molecules con...
The strongest type of bond is the [{Blank}], which is formed between atoms. When this strongest type of bond forms, it [{Blank}] break when it is placed in water. This bond occurs when the [{Blank}...
Classify carbon tetrachloride by the type of solid it forms.
What type(s) of bond can chlorine form?
Which of the following consists of ions? a) LiOH b) Ba(NO3)2 c) HNO3 d) CH3(CH2)3OH
Give formulas for the following compounds: a. carbon disulfide, b. sulfur trioxide.
How are covalent bonds strongly linked?
Chemical bonds in carbohydrates and fats have ______. a. no potential or kinetic energy b. large amount of kinetic energy c. large amount of potential energy d. small amount of potential energy e...
Which of the following molecules contains only double bonds? If none do, so state. a. NCCN. b. CO_2. c. C_2H_4. d. O_3. e. N_2.
Describe the bonding (using valence bond theory) of the Group 4A atoms in each of the following: a. CCl_4. b. HCN. c. SiF_4. d. CH_3COOH (acetic acid).
Which of the following contains both ionic and covalent bonds in the same compound? a. BaSO_3. b. SrO. c. HI. d. MgS.
Why does sodium chloride normally exist as a crystal rather than as a molecule composed of one cation and one anion?
Describe a covalent bond.
The name trisulfur hexafluoride indicates that there are how many fluorine atoms in this molecule?
Calcite (CaCO_3) has two types of bonds. What are the two types? Demonstrate which is stronger by calculating the degree of ionic character of each bond.
What are the differences between covalent bonds and non-covalent bonds?
List at least three examples of non-covalent interactions found in biological systems.
Why are non-covalent bonds important in biological systems?
Which of the following are true? a) H2O contains polar covalent bonds. b) H2O can disrupt other hydrogen bonds in aqueous solutions. c) Non-polar molecules can not have polar covalent bonds. d) H2O...
Which of the following has all idealized bond angles just slightly less than 120? a) BF3 b) NH3 c) SF6 d) ClF3
Is a covalent bond formed between a metal and a non-metal?
List the three types of chemical bonds (from weakest to strongest) and describe how each type is formed.
True or false? Carbon atoms can form stable bonds with other carbon atoms.
On January 1, 2015, ABC Company issued $10,000 of 8%, 12 year bonds for $9,632 cash. The bonds are dated January 1, 2015, and pay interest annually each December 31. The market rate of interest on...
A covalent bond results when _______. a. electrons are shared between a pair of atoms. b. electrons are transferred from one atom to another atom. c. atoms have outer electrons with the same princi...
How did Gilbert Lewis discover chemical bonds?
Which of the following has the strongest bond? (a) Cl_2 (b) I_2 (c) F_2 (d) O_2 (e) N_2.
Briefly explain the main difference between different types of primary bonds.
Does the formula N2H4 represent an ionic or molecular substance?
Classify the following compounds as ionic or covalent. a. MgCl2 b. NO2 c. SF4 d. KCl
KClO3, KClO2, and KClO are compounds that contain both ionic and covalent bonds. Explain that fact based on your understanding of electronegativity.
Using both words and drawings at the microscopic level, explain the characteristics of each of the following bonds: a polar covalent bond, a nonpolar covalent bond, and an ionic bond.
What is true of disulfide bonds? a. They often occur in the cytosol. b. They are a noncovalent bond. c. They are formed enzymatically in the ER. d. They act as reducing agents. e. they increas...
Does cobalt(II) chloride dissolved in water possess electrical conductivity? Explain.
Based on its location in the periodic table, is magnesium likely to become a cation or an anion? Explain.
True or false? The formation of a compound from individual atoms requires external energy.
The molecular structure of OF_2 is ________. (a) pyramidal (b) None of these (c) octahedral (d) trigonal planar (e) bent.
The greatest degree of ionic character is anticipated for the bond between: a. H and C b. H and Cl c. C and Cl d. H and Br e. Br and Cl
True or false? The breaking of bonds requires energy and the formation of bonds releases energy.
Is a bond formed between two fluorine atoms nonpolar covalent, polar covalent, or ionic? Explain.
Is a bond formed between two chlorine atoms nonpolar covalent, polar covalent, or ionic? Explain.
Is a bond formed between sodium and chlorine nonpolar covalent, polar covalent, or ionic? Explain.
Determine whether the bonds between the following are polar, polar covalent, or ionic. Explain why? C and Cl.
In the C-O bond, which atom is the partially positive end of the bond?
Describe the main features of ionic and covalent bonds.
Will oxygen and iodine form an ionic compound? If so, write the empirical formula of the compound.
From the list of solid materials below, which one has the strongest bond strength? a. aluminum b. silicon carbide c. silica (glass) d. silica (crystalline)
Primary and secondary bonding types are listed below. Which is the weakest bond type? a. metallic b. covalent c. ionic d. van der Waals
In an H2 molecule, the atoms are held together by: A. covalent nonpolar bonds B. ionic bonds C. hydrogen bonds D. covalent polar bonds
What type(s) of bonding would be expected for each of the following materials? a. CaF_2. b. Bronze (a copper-tin alloy). c. Argons gas. d. Nylon. e. Diamond. f. Aluminum oxide (Al_2 O_3). g. Titani...
The kind(s) of bonding in sodium methoxide (NaOCH_3) is/are \\ A. ionic B. polar covalent C. nonpolar covalent D. a mixture of ionic and covalent E. resonance stabilized
True or false? 1,2-dichlorobenzene contains 3 double bonds and 3 single bonds.
In covalent bonds, how many pairs of electrons are shared in a double bond?
Which of the following molecules are nonpolar? (Select all that apply.) a. BCl3 b. O2 c. CH2O d. O3
Compare ionic, covalent, and hydrogen bonds. How do they work?
Predict the type of bonding you would expect to find within each substance. (a) Co(s). 1. covalent. 2. ionic. 3. metallic. (b) CoCl_2(s). 1. covalent. 2. ionic. 3. metallic. (c) CCl_4(l). 1. covale...
True or false? Valence electrons are the most difficult of all electrons to remove.
What are the bond angles in H2Se?
a. What is the function of ionic bonds, covalent bonds, and hydrogen bonds in the human body? b. Explain why each of these three molecules must have its specific types of bonds in order to perform...
Is a bond formed between sulfur and fluorine ionic, polar covalent, or nonpolar covalent? Explain.
Is titanium dioxide a covalent or ionic compound?
How does valence bond theory treat covalent bonds differently from Lewis theory, where all covalent bonds are the same?
If tyrosine and isoleucine undergo dehydration synthesis, where does the new bond form?
Write a molecular equation for the reaction that occur if any, when the solution of the following substance is mixed: Ammonium bromide and Silver nitrate.
Classify the following compounds as having covalent or ionic bonds: a) carbon tetrachloride b) rubidium oxide
The first structure drawn is Carbon with 2 single-bonded hydrogens double bonded to the Nitrogen which also has two respective Hydrogens (formal charge of the Nitrogen is +1). What is an alternativ...
Determine whether SiO2 is an ionic or covalent compound and then use the appropriate rules to name it.
Which particles play the most active role in chemical bonding? a. electrons b. neutrons c. isotopes d. protons
Are any atoms actually 100 percent ionic or covalent bonds, or is it always some sort of spectrum?
Describe all bonding types in ammonium nitrate. Be very specific in naming the species and the bonding types between the species.
What is the basis of chemical bond formation? (Hint: Think about the octet rule.)
Explain the importance of chemical bonds in the living and non-living world.
What are ionic and covalent bonds?
Identify and define the four main types of chemical bonds.
For each of the following compounds, draw the Lewis structure and orbital structure. Be sure to label the sigma and pi bonds and place electrons in the appropriate orbitals. Also, show the atomic o...
Is an S-F bond ionic, polar covalent, or nonpolar covalent? Explain.
Is a bond formed between rubidium and nitrogen ionic, polar covalent, or nonpolar covalent? Explain.
Is a bond between sulfur and iodine ionic, polar covalent, or nonpolar covalent? Explain.
For Sc and O find if it is Ionic, polar covalent, or non-polar covalent.
Is the S-O bond ionic or covalent? Explain.
Is the Na-I bond ionic or covalent? Explain.
What are ionic and covalent bonds? Differentiate and explain.
The electron group geometry of AsH3 is, and its molecular geometry is. a. tetrahedral; trigonal pyramidal b. trigonal pyramidal; trigonal pyramidal c. trigonal planar, trigonal planar d. tetrahedra...
How many non-bonding electrons are on the central atom of iodine pentafluoride (IF5)?
Which of the following statements is most accurate? - Hydrogen bonds are the strongest bonds - Covalent compounds will separate when placed in water, forming ions. - Ionic bonded compounds are sta...
Is a Be-Cl bond ionic, polar covalent, or nonpolar covalent? Explain.
What is the difference between atoms and ions; and covalent compounds and ionic compounds?
What would happen to bond angles when each hydrogen atom is changed to a chlorine atom. (Note that chlorine is larger than hydrogen, so that will also affect the bond lengths as well as the bond a...
Draw and label stick-bond diagrams for three isomers of C_4H_{10}O one of which is a primary alcohol, one of which is a secondary alcohol, and one of which is a tertiary alcohol.
Is the bond formed between carbon and hydrogen ionic, polar covalent, or nonpolar covalent? Explain.
Is an Al-Br bond ionic, polar covalent, or nonpolar covalent? Explain.
Is the Na-F bond ionic, polar covalent, or nonpolar covalent? Explain.
The atomic number of sulfur is 16. Sulfur combines with hydrogen by covalent bonding to form a compound, hydrogen sulfide. Based on the number of valence electrons in a sulfur atom, predict the mol...
What are the bond angles of SiO2?
Is the bond formed between copper and chlorine ionic, polar covalent, or nonpolar covalent? Explain.
Arrange the following molecules or ions in order of increasing N-O bond strength (from weakest to strongest). a. NO2+ b. NO2- c. NH2OH
What is the central atom in PF5?
What is the central atom in NH3?
State the solute-solvent interaction involved in HCN in CHCl_3.
Classify the compound as ionic, polar covalent, or nonpolar covalent based on the bond type and geometry: BaBr_2.
Calculate the electronegative difference for the bond: K-Br.
Draw the electron-dot structure for CH2Cl2. What is its molecular shape? Is it polar or nonpolar?
Does carbonyl sulfide have ionic bonds, covalent bonds, or both? Explain.
Draw the Lewis dot structure for SF6 and provide the following information. a. number of valence electrons b. hybridization c. electron geometry d. molecular geometry e. polarity
Draw the Lewis dot structure for BF4- and provide the following information. a. number of valence electrons b. hybridization c. electron geometry d. molecular geometry e. polarity
Draw the Lewis dot structure for HNO3 and provide the following information. a. number of valence electrons b. hybridization c. electron geometry d. molecular geometry e. polarity
Is the compound CuCl2 ionic or molecular?
Is the compound Na3PO4 ionic or molecular? Explain.
Is the compound SF6 ionic or molecular? Explain.
What type of bond forms between water molecules? A) ionic bonds B) hydrogen bonds C) covalent bonds D) valence bonds
What would happen if Ba2+ and F- bonded? Give the name and formula of this compound.
What term describes the interaction between an atom that carries a partial positive charge and an atom with a negative charge (either full or partial) in different molecules? a. covalent bond b. io...
A neutral oxygen atom will form how many bonds and have how many lone pairs?
Compare and contrast the atomic bonding in CO2 and SiO2.
What kind of bond is the result of a transfer of electrons and not a sharing of electrons? a. van der Waals interaction b. ionic bond c. covalent bond d. hydrophobic interactions
Describe the following types of bonds. a. ionic b. covalent c. polar-covalent d. hydrogen
How many electrons are contained between two nuclei in the case of a double bond?
Sigma bonds can be formed by combining s and p orbitals in three different combinations. What are those combinations?
Is the compound PbO2 ionic or covalent? Explain.
Is the compound AgNO3 ionic or covalent? Explain.
What is the energy of interaction between a sodium ion and one water molecule oxygen? Assume a charge of -0.8 on the water molecule oxygen and a dielectric constant of 80.
How many s orbitals and p orbitals hybridize to form how many sp2 orbitals?
If a \mathbb{p} atomic orbital and an \mathbb{s} atomic orbital were to interact and combine to create new molecular orbitals, how many antibonding molecular orbitals would be created? 0 1 4 2
If a p atomic orbital and an s atomic orbital was to interact and combine to create new molecular orbitals, how many antibonding molecular orbitals would be created? a) 4 \\b) 0 \\c) 2 \\d) 1
Weak non-covalent interactions: a. can have a large cumulative effect. b. combine to form covalent interactions. c. always involve water. d. do not include ionic interactions.
Which pairs of atomic orbitals have the correct geometry to overlap and form a sigma bond? Assume that the x-axis is the internuclear axis. Although it is usually important, don't worry about energ...
Two atoms of hydrogen interact to form a(n): A) Polar covalent bond. B) Nonpolar covalent bond. C) Hydrogen bond. D) Ionic bond.
Characterize the H-O bond as nonpolar, polar covalent, or ionic. Determine the partial (or full) positive and negative charges if the bond has them.
Characterize the F-F bond as nonpolar, polar covalent, or ionic. Determine the partial (or full) positive and negative charges if the bond has them.
Characterize the Si-P bond as nonpolar, polar covalent, or ionic. Determine the partial (or full) positive and negative charges if the bond has them.
Characterize the B-N bond as nonpolar, polar covalent, or ionic. Determine the partial (or full) positive and negative charges if the bond has them.
Characterize the Li-Cl bond as nonpolar, polar covalent, or ionic. Determine the partial (or full) positive and negative charges if the bond has them.
Characterize the C-H bond as nonpolar, polar covalent, or ionic. Determine the partial (or full) positive and negative charges if the bond has them.
Fill in the blank There are __ sigma bonds and __ pi bonds in the H_2C=C=CH_2 molecule.
Give an example of a Lewis structure that satisfies the octet rule.
Which molecule shows the smallest number of lone pairs in its Lewis structure? a. CH3Cl b. C2H6 c. CH3CHO d. CO2 e. all have zero lone pairs
Is dimethyl sulfide polar or nonpolar? Explain.
Name the types of chemical bonds that link: a. Adjacent amino acids in the a protein. b. An amino acid to tRNA. c. Adjacent nucleotides in RNA. d. A codon in mRNA to an anticodon in tRNA. e. The tw...
How does adding a lone pair affect the position of existing atoms and lone pairs?
Which substance in each of the following pairs would you expect to have larger dispersion forces? a. ethane or octane b. HCl or HI c. H2O or H2Se
Which of the following elements would you expect to form mainly covalent bonds? (Select all that apply.) a. oxygen b. potassium c. phosphorus d. iodine e. hydrogen f. cesium
What is the shape and hybridization of an N2O4 molecule?
Why would ethyl alcohol not be a good solvent to use with water in an extraction?
Multiple covalent bonds may occur in atoms that contain carbon, nitrogen, or which of the following: A. Chlorine B. Hydrogen C. Oxygen D. Helium
Which of the following contain a delocalized pi bond? a. H2O b. O3 c. HCN d. CO32- e. none of the above
What is the formal charge on chlorine in Cl F_5? a) +5 b) +1 c) 0 d) -1
Are the H-S bonds in hydrogen sulfide nonpolar covalent, polar covalent, or ionic? Explain.
Which of the following is not considered to be a weak molecular interaction? A. a covalent bond B. a Van der Waals interaction C. an ionic bond in the presence of water D. a hydrogen bond E. A and...
Attracting electrons to form chemical bonds is called: a) swarming b) electronic shielding c) ionization energy d) electronegativity
What is the electron geometry and molecular geometry of each of the following? a. PCl3 b. CHCl3 c. SiH4 d. TeCl4
You are given three bottles labeled A, B, and C. Each bottle contains a white solid. The solid in bottle A melts at 801 C. The solid in bottle B melts at 150 C. The solid in bottle C melts at 825 C...
Is it possible to determine molecular geometry based on a Lewis structure? Explain.
Is SO_4^2- polar or nonpolar?
What is the name of the compound SiCl4? Is this compound molecular or ionic?
Which of the following does not have eight valance electrons? a. Br- b. Ca+ c. Rb+ d. Xe e. All of the above have eight valance electrons.
What is the difference between how covalent bonds and ionic bonds are formed? Provide examples of each.
What is the bond angle of N2?
Which of the following molecules contains at least one polar covalent bond? a. F2 b. KCl c. CH3CH3 d. CH3COOH
The nitrogen atoms in a molecule of N2 share a total of: a) one pair of electrons b) one pair of protons c) three pairs of electrons d) three pairs of protons
How many bonds does phosphorus typically make?
Will fluorine and sulfur form an ionic compound? If so, write the empirical formula and name of the compound formed.
Compare the structures of molecular substances with those of giant molecular substance.
Which of the following would have the largest energy? (a) Typical energy of a single covalent bond (b) Typical energy of a double bond (c) Rotational barrier in C_2H_6 (d) A vibrational transition...
List all types of bonding present in the molecule SO_3. I. Ionic bond. II. Polar covalent bond. III. Nonpolar covalent bond. A. I only. B. II only. C. III only. D. I and II. E. II and III.
Which of the following have both ionic and covalent bonds? A. NH4Br B. NaNO2 C. both A and B D. neither A nor B
Is an S-S bond ionic, polar covalent, or nonpolar covalent? Explain.
What type of intermolecular forces are present in CuSO4?
Write the net ionic equation for the reaction between sodium hydrogen sulfite and potassium cyanide.
Why doesn't H_2 form covalent bonds?
Determine the bond type between each of the following pairs. a) H and H b) N and O c) C and I d) K and O
Why is hydrogen more likely to form H2 than helium is to form He2? a. Helium atoms prefer to bond with different atoms (than He), whereas hydrogen readily bonds with itself. b. Helium atoms have a...
Classify the given compound as ionic or molecular: CO_2.
Why is the bond between 2 oxygen atoms stronger than the bond between 2 fluorine atoms?
Arrange the following from lowest to highest ionization energy. a. O b. O2 c. O2- d. O2+
Arrange the following intermolecular forces in order of increasing strength: Hydrogen bonding, Dipole-Dipole, Ion-Dipole, London Dispersion Forces, and Ionic Bond.
How do valence electrons determine chemical reactivity?
Which molecule has the longest single bond? a) HI b) HCl c) HF d) H2 e) HBr
Classify each compound as ionic or molecular. (a) CO_2 (b) NiCl (c) Nal (d) PCl_3.
Stephanie sold her vacation in home in Miami. She then used the money from the sale to invest in a time-share property in the Poconos. Explain how these two transactions are analogous to the ionic...
Which ion will attract a water molecule more strongly? a) Al3+ b) Be2+ c) Equal attraction
(a) What is a chemical bond? (b) How are ions formed?
Which bond is the strongest when placed in order from greatest to least? a. ionic bonds b. hydrogen bonds c. disulfide bonds
Explain the differences between covalent, polar covalent, and ionic bonds.
In the compounds with ionic bonding, elements hold together by Coulombic force. Is the statement true or false?
Rank the following interactions in order of increasing length. (Explain your answer with a definition and an example of each bond): Ionic, Van der Waals, Hydrogen bond, Covalent single bond.
What is the name of a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g. oxygen or nitrogen) with one side being a covalent bond and the other being an ionic bond?
Classify the following bonds as ionic, nonpolar covalent, or polar covalent. If the bond is polar covalent, indicate the direction of the dipole.
If the C-C axis of the given molecule is the y axis, and the x axis is up and down in the plane of the paper, what are the atomic orbitals used in the double part of the double bond?
Explain how atomic orbitals interact and give rise to molecular orbitals. Explain the difference between molecular orbitals that can be bonding and non-binding.
Which are the polar bonds? a) C-H b) C-F c) O-H d) O-O e) Br-Br f) F-Br
Answer true or false: In a covalent bond, the two nonmetal atoms share electrons.
What is a chemical bond that involves sharing a pair of electrons between atoms in a molecule called?
Covalent bonds are formed when electrons are ____. a. transferred b. split c. shared d. destroyed e. heated
Which are closer together, the two nuclei within molecular fluorine ( F 2 ) or the two nuclei within potassium fluoride ( K F )?
For which of the following compounds is the term molecular mass better suited than the term formula mass? i. F_2 ii. CaO iii. NH_3 iv. NaOH v. CH_3OH
Describe a double bond according to valence bond theory. Why is rotation restricted about a double bond but not about a single bond?
What do you mean by pi bonds? How are they formed?
Correctly describe the three chemical bonds and provide an example of each.
Distinguish between sigma and pi bonds. When are they relevant?
How do atoms such as oxygen and sulfur form bonds?
What type of chemical bond occurs between N and N? a. polar covalent b. pure covalent c. ionic
What type of chemical bond occurs between Ca and F? a. polar covalent b. pure covalent c. ionic
Name the type of bond that is formed when there is total transfer of electrons from a metal to a non metal during ionic reaction.
Distinguish between the nature of the chemical bonding for ionic and covalent polar and nonpolar compounds. a. Identify which categories of elements usually bond ionically, and explain why this is...
How many pi bonds are present in acetylene (C2H2)?
How many bonds can each atom make without hybridization? O_2 s_22p_4
Would iodine form a more ionic or covalent bond with a bromine atom? Explain.
How do you determine the number of electrons that go into the Lewis structure of a molecule?
Which of the following elements do you expect to lose electrons in their chemical reactions? Explain. a. Ga b. Sn c. Br d. N
Would a bond between Ca and F be pure covalent, polar covalent, or ionic? Explain.
Fill in the blank: A _____ is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attractio...
The melting point of phosphorous (III) chloride is -91 degrees C while that of magnesium chloride is +715 degrees C. In terms of structure and bonding, explain the difference.
A chemical change involves a change in ________. a. how atoms are bonded b. the elements of a molecule c. phase
What is a covalent bond? What does it do? How is it different from an ionic bond?
What is the difference between covalent bonds and ionic bonds?
Indicate the number of sigma bonds and the number of pi bonds in the molecule CO32-.
What are chemical bonds and why do they form?
What is the strongest type of intermolecular attractive force present in magnesium sulfide, MgS? a. ionic b. ion-dipole c. hydrogen bonding d. dipole-dipole e. dispersion forces
The molecular shapes of methane and water are based on sp3 hybrid orbitals attached to the central atoms. Why are the bond angles in the molecules not identical?
How do Van der Waals bonds differ from covalent bonds?
Which of the following statements concerning double covalent bonds is correct? a. They are found only in molecules that contain P or atoms in the third period or higher. b. They are only found in m...
A bond formed when one or more electrons are transferred from one atom to another is called?
A chemical bond formed when two atoms share electrons is known as?
Classify the following substance as ionic compound or covalent compound containing discrete molecule: SiCl_4.
Classify the bond as ionic, polar, covalent, or nonpolar covalent, and give the reason. The NB bond in H_2NBCl_2 - polar covalent
Which ones of the following statements are exactly true for chemical bonds? (a) While breaking chemical bond, energy is released (b) Two nonmetal atoms share their electrons and form bond (c) Nu...
What is the difference between ionic bond and covalent bond?
a) Between physisorption or chemisorption, which has a higher enthalpy of adsorption? b) What are the products of hydrolysis of sugar?
What is the octet rule for bonding?
What are the three chemical bonds?
1. How are ionic and covalent bonding similar? How are they different? How they bond and what the major differences are in their nomenclature (the way they are named)? 2.What are the major diffe...
In ionic bonding, explain why electrons are completely transferred from one atom to another.
What is a type of chemical bond involving the sharing of electrons between atoms in a molecule, especially the sharing of a pair of electrons by two adjacent atoms?
What is a chemical bond? How does ionic bond differs from covalent bond?
Why does BH3 dimerize to form B2H6 while BF3 does not?
What is the approximate F-C-F bond angle in CH2F2?
What is the difference between ionic interactions and ionic bonds? Is one stronger than the other?
Which of the following statements is correct? (a) Covalent bonds usually involve two nonmetals and ionic bonds usually involve two metals. (b) Covalent bonds usually involve two metals and ionic...
Name two compounds that we use everyday, one sweetens our food and one seasons it.
How one can predict whether a bond will be ionic or covalent?
Which of the following bonds is the strongest? a) C - N b) C = N c) C N d) It is not possible to tell e) All of the above bonds have approximately the same bond strength
As the number of covalent bonds between two atoms increases, the distance between the atoms __________ and the strength of the bond between them __________. a. increases, increases b. decreases,...
What are the different types of bonds between metals and non-metals?
Explain the concept of chemical bonding in chemistry.
What does chemical bonding mean in organic chemistry?
What is the usual valence associated with nitrogen in covalent compounds?
What is the usual valence associated with oxygen in covalent compounds?
What are the differences between polar and ionic bonds?
State any five of bonds known in chemistry state what they are?
What is the chemical charge of nitrogen oxide?
Determine whether the bonds between the atoms will be single bonds or double bonds in H2O (water).
Explain the concept of chemical bonding. How is it useful in the study of chemical reactions?
Why do metals only form ionic compounds while metalloids and nonmetals form ionic and covalent compounds?
What is an ionic bond according to structure and bonding?
What is the error in the statement, "The molecular formula of barium chloride is BaCl2?" a. Barium chloride does not have a molecular formula because it is ionic. b. Barium chloride does not exist...
Fill in the blank with correct word/s. A chemical bond that involves sharing a pair of electrons between atoms in a molecule is known as \rule{1in}{.2mm}.
The atoms in nitrogen trifluoride are held together by covalent bonds. A covalent bond forms when two nuclei are held together by their common attraction for a shared pair of.
Identify the following properties as the property of an ionic compound or a molecular compound: 1. are electrolytes in aqueous solution 2. form aqueous solutions that conduct electricity 3. are not...
Explain vividly how hydrogen bonds are formed and what force keeps the bonds intact?
Explain how ionic bonds are formed in compounds?
Name the kind of bonds found in aluminium chloride and state the nature of the compound.
What type of bond exists in a metallic element?
Name three types of chemical bonds.
What name is given to a weak chemical association with hydrogen in polar covalent bond?
What is a valence bond?
How many π and σ bonds are in Lidocaine?
The maximum number of covalent formed by nitrogen is [{Blank}]
Match the following : a- covalent bonds b- ionic bonds 1. when a complete transfer of electrons occurs; 2. occurs within 2 or more atoms sharing electrons
Which one of the following species contains an unpaired electron? a) N2 b) N2O c) NO2 d) NO3- e) N2O4
What is the difference between ionic and covalent compounds?
What is the difference between an ionic and a covalent bond? Describe how each of these bonds is formed.
Explain how atoms fuse in covalent, metallic, and ionic bonding.
What determines the chemical properties of a substance?
What is hydrogen bonding and how does it affect the boiling point?
Which element will form a covalent bond with nitrogen? a. Be b. Li c. K d. O
What is O-O-O bond angle of O₃?
Element X, whose atomic number is 11, reacts with chlorine gas to form a compound. a. Name the group and period to which X belongs. b. Write an equation for the reaction.
Define covalent bond.
What is a mutual electrical attraction between the nuclei and valance electrons of different atoms that binds the atoms together called?
What type of chemical bond results from the sharing of an electron pair between two atoms?
What is the energy required to break a chemical bond called?
What types of atoms typically form covalent bonds?
A carbon atom is able to form four single covalent bonds because it: (select one of the following and explain your answer) a. has four electrons and four protons b. has four valence electrons...
In terms of structure, explain why salt has a higher melting point than sugar.
Bonding is important in compound creation. Name three main types of bonds.
Is Ag2S an ionic or covalent compound? Explain.
In the nitrogen molecule (N2), there is a [_____] bond. 1. single 2. double 3. triple 4. quadruple 5. partial
Elements whose electronegativities are similar will form bonds that are [_____]. 1. ionic 2. polar covalent 3. pure covalent 4. triple 5. lacking an electron
Both carbon dioxide and a diamond have covalent bonds. but carbon dioxide is a gas and a diamond is a solid at STP condition. What are the similarities and differences of the two materials in terms...
What are the different types of bonding used in chemistry?
Explain the difference between ionic and covalent bonds and what they do.
The bond dissociation energy is the amount of energy required to break a bond a) so as to produce the more stable pair of ions. b) heterolytically. c) homolytically. d) via hydrogenation. e) no...
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