A hydrogen balloon explodes when contacted with a flame. Is this a physical change or a chemical...
Question:
A hydrogen balloon explodes when contacted with a flame. Is this a physical change or a chemical change? Explain.
Matter.
In our environment we can observe physical and chemical changes in matter, whether natural or human-induced. For example, water can exist in solid (ice), liquid, and vapor phases. Surprisingly, all 3 phases can exist simultaneously (triple point).
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerWhen the balloon shell is destroyed by the flame, the hydrogen comes into contact with the flame in the presence of oxygen from the air. In other...
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:
Get access to this video and our entire Q&A library
What Is a Chemical Change? - Properties, Types & Examples
from
Chapter 6 / Lesson 15
168K
What is a chemical change? Explore the properties, effects, and characteristics of chemical changes that occur using decomposition and combination as examples.
Related to this Question
- Is the explosion of a firecracker a chemical change or a physical change? Explain.
- When fireworks explode, is this a physical change or a chemical change? Explain.
- Hydrochloric acid reacts with magnesium to produce hydrogen gas. Is this a physical change or a chemical change? Explain.
- A tire is inflated with air. Is this a physical change or a chemical change? Explain.
- A scientist inflated a balloon to 30 L at 100C and sealed it completely. He then placed the balloon on dry ice where the ballon shrunk to 15mL. What that a physical or chemical change?
- Is burning sulfur a physical change or a chemical change? Explain.
- Is burning toast a physical or chemical change? Explain your answer.
- A glass window is splintered by the force of an explosion. Is this a chemical or physical change? Explain.
- Which of the following is a physical change? a) A hydrogen balloon explodes into flames when touched with a lighted stick. b) A mixture of vinegar and chalk gives off a gas. c) Rain freezes on the windshield of a car. d) A "tin" can rusts. e) Water separa
- Sodium and potassium react violently with water. Is this a physical change or a chemical change? Explain.
- Is mixing sodium bicarbonate and hydrochloric acid a chemical change or physical change? Explain.
- Sugar burns when heated on a skillet. Is this a physical or chemical change? Explain.
- Is molten lava cooling a chemical or physical change? Explain.
- Is ice melting a chemical change or a physical change? Explain.
- Is breaking an egg an example of a physical or chemical change? Explain.
- When zinc granules are added to dilute sulfuric acid, hydrogen gas is given off. Is this a chemical or physical change? Explain.
- Consider the burning of gasoline and the evaporation of gasoline. Which process represents a chemical change and which represents a physical change? Explain.
- Are changes in state physical or chemical changes? Explain.
- When clouds form in the sky, is this a physical change or a chemical change? Explain.
- Is the decomposition of water into hydrogen and oxygen a physical change or a chemical change? Explain.
- Which of the following changes are chemical changes? a. Water is frozen. b. Water is boiled. c. Gasoline is burned. d. Gasoline is evaporated. e. Water is heated up.
- Is dissolving sugar in water a physical change or a chemical change? Explain.
- What chemical change occurs when a wax candle burns? A) The wax near the flame melts. B) The molten wax is pulled upwards through the wick. C) The wax within the wick is heated to about 600 degrees Celsius. D) The heated wax molecules combine with oxygen
- What chemical change occurs when a wax candle burns? a. The wax near the flame melts. b. The molten wax is pulled upwards through the wick. c. The heated wax molecules combine with oxygen molecules. d. The wax within the wick is heated to about 600 degree
- A hot glue gun melts a glue stick. Is this an example of a physical change or a chemical change? Explain.
- Is coal burning a chemical change or a physical change? Explain.
- Alka-Seltzer gives off carbon dioxide when added to water. Is this a physical change or a chemical change? Explain.
- What is the difference between a chemical change and a physical change?
- Is cutting paper a physical change or a chemical change? Explain.
- Water is absorbed by a paper towel. Is this a physical change or a chemical change? Explain.
- What is the difference between a physical change and a chemical change?
- After experimenting creating geysers using Mentos & Coke Cola. Is the final result a physical or chemical change?
- Is bending a nail with a hammer an example of a physical change or a chemical change? Explain.
- What are physical changes and chemical changes? Explain the difference between them.
- Would you expect a chemical change to be always accompanied by a physical change? Explain?
- Use the kinetic molecular theory of gases to explain each of the following: a. A container of nonstick cooking spray explodes when thrown into a fire. b. The air in a hot-air balloon is heated to ...
- Sugar dissolves in water. Is this a physical or chemical change? Explain.
- Is the melting of an iceberg a physical or chemical change? Explain.
- Which of the following changes are chemical changes? a. Water is heated up. b. Gasoline is evaporated. c. Water is boiled.water is frozen. d. Gasoline is burned.
- Is crushing rock salt a physical change or a chemical change? Explain.
- Which event always involves a chemical change? a. boiling b. melting c. conducting d. burning
- Is digesting a chili dog a physical change or a chemical change? Explain.
- Is bending a metal wire a physical change or a chemical change? Explain.
- Describe the differences between physical change and chemical change in a material. Use examples related to the fire service to illustrate physical change and chemical change.
- Which change is a physical change? (a) Wood burning (b) Iron rusting (c) Dynamite exploding (d) Gasoline evaporating.
- Is dissolving salt into water a physical change or a chemical change? Briefly explain your choice.
- Is mixing chocolate syrup with milk a chemical change or a physical change? Explain.
- Suppose you mix 3 liquids, and the resulting solution becomes very hot. A short time later, bubbles begin to form. There is a chemical and a physical change happening. a. Explain what could be occurring. b. How could you determine if the gas was the resul
- Which of the following is an example of a chemical change (change in chemical composition) that involves starting with a liquid and ending up with a gas? a) Burning gasoline (combustion). b) Boiling a
- A helium-filled balloon spontaneously deflates overnight as He atoms diffuse through the wall of the balloon. Describe the redistribution of matter and/or energy that accompanies this process.
- Describe the physical change that takes place when potassium chloride salt substitute dissolves in water. Why is this not a chemical change?
- Two changes are described below. 1. Water vapor condenses. 2. Liquid water separates into hydrogen and oxygen. Which statement is true about the two changes? A. Both are chemical changes because new substances are formed. B. Both are physical chang
- When chalk is ground into powder, is this a physical change or a chemical change? Explain.
- Which changes involve a chemical reaction? Explain your answers. a) Butane burning in a butane lighter. b) Wood burning. c) Dry ice subliming. d) Butane evaporating.
- What are the observable changes that can indicate that a chemical change has occurred?
- A helium-filled balloon spontaneously deflects overnight as He atoms diffuse through the wall of the ballon. Describe the redistribution of matter and /or energy that accompanies this process?
- Explain briefly why a sample of an element having a melting point of 30.0 degrees Celsius might melt in the open air. Is this a physical change or chemical change?
- Is the formation of snowflakes a physical or chemical change? Explain.
- Explain how chemical changes in matter take place.
- What is a composition change? Is it a physical change or a chemical change?
- A sugar cube is ground up. Is this a physical change or a chemical change? Explain.
- Which of the following is evidence for a chemical reaction? A. change in physical state B. change in color C. change in mass D. all of these E. none of these
- A balloon spontaneously deflates overnight as He atoms diffuse through the wall of the balloon. Describe the redistribution of matter and/or energy that accompanies this process.
- Which of the following is an example of physical change? A)Dew forms on a blade of grass. B)A Halloween light stick glows after shaking. C)An egg solidifies during cooking. D)A hydrogen balloon explodes when contacted with a flame. E)None of the above is
- A chemical change occurs when: a. ice melts b. water boils c. methane is burned d. Kool-Aid powder dissolves in water
- If you place a glass rod over a burning candle, the glass turns black. What is happening to each of the following as the candle burns? Explain in terms of physical change, chemical change, both, or neither. a. The wax b. The wick c. The glass rod
- Magnesium combines with oxygen to form a brittle white solid. Is this a chemical or physical change? Explain.
- Which property of matter changes during a chemical change but not during a physical change?
- Which property that is used to determine if a chemical reaction has occurred can also be the result of physical changes? a. formation of a solid b. formation of a gas c. presence of a flame d. change of color e. change in temperature
- What is the difference between a chemical change and a chemical reaction?
- What is the difference between physical and chemical change? For example, if you are cooking an egg, would it be a physical change because it changes from a liquid to a solid?
- The boiling of water is a: a. physical change because the water disappears. b. physical change because the gaseous water is chemically the same as the liquid. c. chemical change because heat is needed for the process to occur. d. chemical change because h
- What are the five common observable changes that can occur when a chemical reaction has taken place? Give an example of each.
- What makes the change of temperature and evolution of gas (forming of bubbles) similar, except that they are both indicators of chemical reactions? What makes them different?
- A piece of copper is cut in half. Is this a physical change or a chemical change? Explain.
- Are the changes that occur when Iodine is heated chemical? Explain your reasoning.
- Is stretching copper into wire a physical change or a chemical change? Explain.
- Explain briefly why a sample of an element having a melting point of approximately 30.0 degrees C might melt in open air. Is this a physical change or a chemical change?
- When water boils, steam forms. When vinegar and baking soda combine, carbon dioxide gas is released. Which change is physical and which change is chemical? How do you know?
- What is synonymous to a chemical reaction? A) physical reaction B) change in phase C) rise in temperature D) chemical change
- Which of the changes are chemical changes? a. A candle is burned. b. A silver teapot turns black. c. Sugar crystals are ground to a fine powder. d. Candle wax is melted. e. Two clear colorless sa
- Is a composition change a chemical change or a physical change?
- A black solid is heated in a tube that is completely evacuated of air. Hydrogen is added to the tube. An orange powder is formed and water vapor (H2O) is seen on the outside of the tube. Is this an example of a physical or chemical change? Explain.
- A physical change occurs: a. when ammonium carbonate decomposes into ammonia gas, water and carbon dioxide. b. when octane is combusted in an automobile engine. c. when calcium reacts slowly with cold water to form hydrogen gas and other products.
- A chemical reaction involves many changes, but not everything changes during a reaction. Which of the following is not a change that occurs during a chemical reaction? (a) Heat is released and/or absorbed. (b) New molecules are formed. (c) Bonds break.
- Explain why a sample of an element having a melting point of approximately 30.0 degrees Celsius might melt in open air. Is this a physical change or a chemical change?
- Ethyl alcohol evaporates. Is this a physical change or a chemical change? Explain.
- A chemical change involves a change in ________. a. how atoms are bonded b. the elements of a molecule c. phase
- Classify each of the following as a physical or chemical change or property. a. A fireplace poker glows red when you heat it in the fire. b. A marshmallow turns black when toasted too long in a campfire. c. Hydrogen peroxide dental strips will make you
- Name three chemical changes that happen when a paper clip is heated over a Bunsen burner and then cooled in water.
- A piece of ice melts and then reacts with sodium. Are these physical or chemical changes?
- Define physical change and chemical change. State which type of change occur in each of the following statement: yellow-green chloride gas attacks silvery sodium metal to form white crystals of sodium chloride(table salt).
- What would have to be done to water to make it change chemically (that is, make it change into the substances that compose it: hydrogen and oxygen)? Remember, boiling water will not change it chemically, but will only cause a phase change.
- The statement "ammonia is a gas at room temperature" describes a: a) chemical property b) physical property c) chemical change d) physical change
- How can you tell the difference between a physical change and a chemical change? Give examples of each.
- A chemical change: (A) Occurs when paper is shredded (B) Occurs when methane gas is burned (C) Occurs when water is vaporized (D) Occurs when salt is dissolved in water (E) Occurs when powdered lemonade is stirred into water
- Is "oil poured in water" a physical or chemical change?
- Which of the following cannot occur in a chemical reaction? a. new atoms are created b. heat is released c. light is produced d. temperature is changed
- Which of the following is a chemical change? (a) burning sugar (b) making a snowman (c) bending a steel rod.
- Which of the following describe a physical change? Choose all that apply. a) Crushing a dry leaf b) Carbon dioxide and water are produced when gasoline is burned c) Evaporation of water from a lake d) Burning your chemistry textbook e) Sulfur and hydrogen
Explore our homework questions and answers library
Browse
by subject