A substance containing two or more elements chemically combined in a fixed ratio is called...
Question:
A substance containing two or more elements chemically combined in a fixed ratio is called _____.
Classification of Matter:
Matter is anything that occupies space and has mass. It can be classified as either a pure substance or a mixture depending on the type of method that can break down its composition. If it is possible to break matter into its components using physical methods, it is considered as a mixture. If a chemical method is required, it is a pure substance.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerA substance containing two or more elements chemically combined in a fixed ratio is called a compound.
A pure substance can be classified as either...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:

from
Chapter 5 / Lesson 13What is a pure substance in chemistry? Learn the definition of pure substances in chemistry and their properties. See examples of pure substances.
Related to this Question
- A [{Blank}] is defined as a mixture of two or more substance that are evenly distributed.
- A substance that can't be chemically broken down into simpler substances is ______. (a) a compound (b) an element (c) an electron (d) a heterogeneous mixture (e) a homogeneous mixture.
- A pure substance that cannot be broken down into other substances by chemical reactions is called [{Blank}].
- Chemicals made from atoms of DIFFERENT elements joined by a chemical reaction are called [{Blank}].
- A combination of two or more substances in which they no longer retain their chemical properties is called a: A) mixture B) compound C) heterogeneous mixture D) periodic trend E) suspension
- Substance A can be chemically decomposed into substances B and C. Substances B and C cannot be decomposed further. Classify A, B, and C as elements or compounds.
- An element cannot _______. a. be part of a homogenous mixture b. interact with other elements to form compounds c. be part of a heterogenous mixture d. be a pure substance e. be separated into other substances by chemical means
- A mixture is: a. a combination of pure substances bonded chemically. b. any substance with a uniform composition. c. a blend of any two or more kinds of matter, as long as each maintains its own unique properties. d. any group of elements that are chemica
- A material that is composed of only 1 type of substance is called [{Blank}].
- A process in which substances are separated through differences in the rates at which the components migrate is called {Blank}.
- A substance with specific properties that can not be broken down or converted to another substance is a(n): a. element b. molecule c. ion d. compound e. mixture
- The branch of science that deals with the identification of the substances of which matter is composed is [{Blank}] .
- Fill in the blank: ________ ______ occur when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances.
- Is a liquid that separates into three distinct layers classified as an element, a compound, a heterogeneous mixture, or a homogeneous mixture?
- A molecule is: a. more important in a chemistry class than in a biology class b. a combination of 1 or more atoms in a fixed ratio c. a mixture of various components
- A _____ means that 2 or more substances have combined, yet the 2 substances retain their chemical identity.
- The different substances in a mixture \\ a. keep their properties b. form new molecules c. combine chemically d. cannot be separated
- Classify the substance air (mostly N2 and O2). More than one answer may apply. a. element b. compound c. pure substance d. homogeneous mixture e. heterogeneous mixture f. solution
- The primary substance from which all other chemical compounds and substances are made is a _____. A) element B) compound C) mixture D) pure substance
- A compound is: a. a pure substance that cannot be broken down into simpler, stable substances. b. a substance, made of two or more atoms that are chemically bonded, that can be broken down into simpler, stable substances. c. the smallest unit of matter th
- If matter is uniform throughout and cannot be separated into other substances by physical means, it is: a. a compound b. an element c. either an element or a compound d. a homogeneous mixture e. a heterogeneous mixture
- Compounds can only be separated into their component elements by? 1. heating 2. melting 3. breaking chemical bonds 4. crushing
- In a homogeneous mixture: a) the substances are not evenly distributed. b) the substances are always liquids. c) the substances are always solids. d) the substances are uniformly distributed.
- A mixture contains equal amounts of compounds A-D. Which compounds alone are optically active?
- Properties of matter that can be measured or observed without matter changing to an entirely different substance are called [{Blank}] .
- Match the following: a) Mixture b) Compound 1) No chemical change takes place and each item retains its properties. 2) A chemical change does take place and properties are different from the elements they are made from.
- Is helium classified as a pure substance, a pure element, a homogeneous mixture, or a heterogeneous mixture?
- In varieties of matter the term heterogenous may be applied to: a) elements, but not compounds b) compounds, but not elements c) compounds and elements, but not mixtures d) mixtures, but not elements or compounds
- Is a diamond classified as a pure substance, a pure element, a homogeneous mixture, or a heterogeneous mixture?
- Which of the following appears to be a uniform substance, even though it is composed of different substances that are not chemically combined? a. a homogeneous mixture b. a heterogeneous mixture c. an element d. a compound
- As two chlorine atoms combine to form a molecule, energy is: 1 - absorbed 2 - released 3 - created 4 - destroyed
- Can the relative amounts of the components of a mixture or a compound vary?
- [{Blank}] are made of the same elements in the same proportions regardless of size or source of samples.
- wWhat can be defined as homogeneous mixture? A. a type of mixture in which the composition is uniform B. a mixture of least 3 substance
- Classify a piece of lumber as an element, a compound, or a mixture.
- Which of the following is separated into pure substances by a physical method? a. compound b. mixture c. element d. all of the above e. none of the above
- Which of the following statements about compounds is true? a) A substance composed of two or more elements in fixed, definite proportions. b) A substance that cannot be broken down into simpler substances. c) A substance that is not as common as pure elem
- True or false? Mixtures always result in a chemical reaction because they consist of two or more substances and thus combine to create a new product.
- True or false? A mixture is always made up of a combination of elements.
- Coins in a piggy bank are an example of a(n) __________. a. compound b. heterogeneous mixture c. element d. homogeneous mixture e. none of the above
- The ability of substances to undergo chemical reactions and release energy either by reacting with themselves or with other materials is called [{Blank}].
- Pure substances and mixtures are different because mixtures: a. always have exactly the same composition b. have exact melting points c. retain the properties of the constituents in the mixture d. cannot be separated into their components by physical
- The half-lifetime of substance A is that of substance B if substance B is more likely to react away than substance A.
- Consider a uniform shiny yellow-orange solid that produces two distinct liquids when melted. Is this classified as an element, a compound, a heterogeneous mixture, or a homogeneous mixture?
- When two compounds, A and B, are mixed together, they form compound C, by the reaction that's not well understood. Fortunately, the following rate information was experimentally determined, as shown b
- Consider a clear liquid that produces two gases that cannot be broken down into simpler substances when an electric current passes through it. Is this classified as an element, a compound, a heterogeneous mixture, or a homogeneous mixture?
- Classify the following as elements substances, compounds, homogeneous mixture, or heterogeneous mixture: A cup of homogenized milk.
- True or false? Compounds can be separated into their constituent elements using physical methods.
- Can the dew point of a mixture and the bubble point of a mixture (at a composition where multiple components are present) ever be the same? Why or why not?
- The identity of an unknown compound can be confirmed by: a) mixing the unknown with the suspected known compound and measuring a sharp melting range. b) matching the crystalline appearance (color, shape) of an unknown and known compound. c) mixing the unk
- Classify white wine as one of the following. a. element b. compound c. homogeneous mixture d. heterogeneous mixture e. energy f. none of the above
- a piece of filter paper is spotted with a solution containing a mixture of two components, A and B. The affinity of A for the stationary phase is less than that of B, and the chemical affinity of A for the mobile phase is greater than that of B. Which sub
- [{Blank}] contains molecules that are mixed up in an EVEN distribution- looks the same throughout.
- The identity of an unknown compound can be confirmed by: A. mixing the unknown with the suspected known compound and measuring a wide melting range. B. matching the crystalline appearance (color, shap
- Compounds are chemically different from mixtures because: a. mixtures always have identical chemical properties if the same substances are used when making the mixtures b. mixtures are always homogeneous c. compounds may involve energy changes when they a
- Classify plywood as one of the following. a. element b. compound c. homogeneous mixture d. heterogeneous mixture e. none of the above
- 1. A homogenous mixture has regions that are different in composition or phase. a. True b. False 2. Oxygen is: a. a mixture b. an element c. a solution d. a compound e. always combined with hy
- A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. The gas has exactly the same properties as the product obtained when carbon is burned in an excess of oxygen.
- Orange juice with pulp is an example of (a) A pure substance (b) A heterogeneous mixture (c) A compound (d) An element (e) A homogeneous mixture
- The law of constant composition (also called the law of definite proportions) applies to __________. a. solutions b. heterogeneous mixtures c. compounds d. homogeneous mixtures e. solids
- Fill in the blank: The substance produced by the condensation of a glycol and an organic diisocyanate is called __________.
- Can the components of an azeotropic mixture be separated by fractional distillation?
- Is milk classified as a pure substance, a pure element, a homogenous mixture, or a heterogeneous mixture?
- The building blocks of all matter are atoms and these combine to form , which combine to form. a) atoms, compounds b) molecules, atomic clusters c) atoms, compound components d) molecules, compounds
- True or false? The components of homogeneous and heterogeneous mixtures cannot be separated.
- Element or compound type of solid formed ,force holding the solid together, melting point of solid: Ar, HF, W.
- True or false? Components of a homogeneous mixture are visibly distinct.
- Sort the phrases pertaining to pure substances and mixtures as either true or false. A. The components of a homogeneous mixture are chemically combined. B. Homogeneous mixtures have uniform properties
- The law of constant composition says that __________. a. the composition of a compound is always the same b. all substances have the same composition c. the composition of an element is always the same d. the composition of a homogeneous mixture is al
- Elements and compounds are more similar to each other than they are to mixtures because: a. Elements and compounds cannot be reduced to simpler substances by physical or mechanical means, but mixtures can. b. Elements and compounds can only be liquids or
- Spectroscopic tools are important to the synthetic organic chemist. For each pair of compounds, describe an aspect from one spectroscopic method (UV-vis, proton NMR, or IR) that would distinguish one compound in a pair from the other. Be specific as possi
- In nature, metal is found in combination with other elements and must be ______ to return to its pure form. (a) oxidized (b) reduced (c) radicaled (d) bleached
- The catalyst used for heterogeneous catalysis is: a) Solid b) Gas c) Liquid d) None of these
- Two identical pieces of the same unknown metal are placed into 1.0 M solutions of LiNO_3(aq) and Fe(NO_3)_2(aq). No reaction is observed in the LiNO_3(aq); however,
- The structures of some common crystalline substances follow. Show that the net composition of each unit cell corresponds to the correct formula of each substance.
- The human body is made up of several chemical elements. The element present in the highest proportion (65%) in the body is
- _____ is the branch of science that deals with the identification of the substances of which matter is composed, the investigation of their properties and the ways in which they interact, combine, and change and the use of these processes to form new subs
- Two elements, R and Q, combine to form two binary compounds. In the first compound, 9.50 g of R combines with 3.00 g of Q. In the second compound, 7.00 g of R combines with 4.50 g of Q. Show that thes
- __________ is a mixture consisting of equal amounts of each optical isomer. A. Racemic B. Chiral C. Rotate polarized light D. Dextrorotary
- As opposed to the compound NCl3, which is very unstable, the compound NF3 is quite stable. The compounds NBr3 and NI3 are unknown, whereas the explosive compound NI3.NH3 is known. Account for the instability of these halides of nitrogen.
- True or false? Heterogeneous mixtures contain more than one part, and each part has its own properties.
- When a substance is reduced it is called a(n): (a) Oxidizing agent (b) Reducing agent (c) Both (d) Neither
- The specific rotation of a pure substance is -5.90? What is the percentage of this isomer in a mixture with an observed specific rotation of -2.95 degree? a.50% b.75% c.25% d.0% e.80%
- Xenon trioxide is an unstable compound and readily decomposes into the elements. \\ 2XeO_3(g) \rightleftharpoons 2Xe(g) + 3O_2(g), K_p = 1.08 \times 10^{140}\ \text{atm}^3 \text{ at } 25^\circ C \text{ (rxn 1)} \\ Suppose a container has a 0.020 atm part
- Apple juice is an example of: a. an element b. a compound c. a homogeneous mixture d. a heterogeneous mixture
- In the term "trace element", the modifier trace means: a.) the element is very rare on earth b.) the element can be used as a label to trace atoms through an organism's metabolism c.) the element is required in very small amounts d.) the element passes ra
- Match the following substances with the corresponding category.
- A(n) sample is a sample where the chemical composition differs from place to place. A. variable B. homogeneous C. random D. inconsistent E. heterogeneous
- Is tequila classified as a pure substance, a pure element, a homogeneous mixture, or a heterogeneous mixture?
- A sample with a uniform chemical composition is a sample. A. homologous B. homogeneous C. uniform D. consistent E. heterogeneous
- You are trying to separate a mixture of the compounds below. Label the compounds in order of expected elution from the alumina column, start with #1 as the compound you would elute first down to #4. a) Naphthalene b) 2-naphthol c) Benzaldehyde d) Benz
- Classify each of the following pure substance or a mixture if it is a pure substance, classify it as an element or a compound, if it is a mixture, classify it as homogeneous or heterogeneous. 1. urine 2. pure water 3. snickers bar 4. soil
- The components of a heterogeneous mixture are not uniformly distributed. True or False.
- The substance produced by the condensation of glycol and diisocyanate is called
- A mixture of 2.0 mol H_2 and 1.0 mol of O_2 is placed in a sealed evacuated container made of a perfect insulating material at 28 ^oC. The mixture is ignited with a spark and it reacts to form liquid
- Answer true or false: A solution is a homogeneous mixture in which the components are uniformly mixed.
- Chemists design materials to fit {Blank} needs. Chemistry is important in the production and conservation of {Blank}.
- Sugar to put in a cup of coffee. Sugar can be classified as a(n) A) Element B) Ionic compound C) Compound D) Mixture
- One of the D-2-ketohexoses is called sorbose. On treatment with NaBH_4, sorbose yields a mixture of gulitol and iditol. What is the structure of D-sorbose? (Gulitol and iditol are the alditols obtained by reduction of gulose and idose.)
- Substances A, B, and C can all act as oxidizing agents. In solution the neutral substance A is green, B is yellow and C is red. In reactions in which they participate, they are reduced to A^1-, B^1-",