3. Which of the following processes is best described as a chemical change? Upon heating, mercury (II) oxide forms mercury metal and exygen gas. A Evaporation of rubbing alcohol. Deposition of iodine vapor on a surface. d. Grinding rock salt. c.
3. Which of the following processes is best described as a chemical change? Upon heating, mercury (II) oxide forms mercury metal and exygen gas. A Evaporation of rubbing alcohol. Deposition of iodine vapor on a surface. d. Grinding rock salt. c.
Introductory Chemistry: A Foundation
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Chapter6: Chemical Reactions: An Introduction
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Problem 48AP: The following demonstration takes place in a two-step process: First, solid calcium carbide (CaC2)...
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Transcribed Image Text:3. Which of the following processes is best described as a chemical change?
Upon heating, mercury (II) oxide forms mercury metal and exygen gas.
A Evaporation of rubbing alcohol.
Deposition of iodine vapor on a surface.
d. Grinding rock salt.
c.
Expert Solution
Step 1
A chemical change is defined as the change in the chemical formula of the compounds. So whenever there is change in the formula of the compound that will be called as chemical change.
Similarly a physical change is defined as a change where chemical formula remains same just the physical condition of compound changes. Like evaporation where only the phase of compound is changing from liquid to gas keeping the chemical formula as it is.
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