Chapter 12

Question 1

A substance, usually liquid, that dissolves another substance to form a solution is a

Accepted Answer

solvent

Question 2

Chemical reactions that are characterized by giving off heat are

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exothermic

Question 3

What is an example of an oil-in-water emulsion of two immiscible liquids

Accepted Answer

Cold cream

Question 4

The oxidation of haircolor is an example of a

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chemical change

Question 5

Air contains many substances, including nitrogen, carbon dioxide & water vapor&is an example of

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physical mixture

Question 6

Water and alcohol _____

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are examples of miscible liquids

Question 7

The chemical combination of two or more atoms of different elements produces

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compound

Question 8

chemical reaction results in oxidizing agent being reduced &the reducing agent being oxidized

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Redox

Question 9

A common volatile organic compound used in hair spray is

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ethyl alcohol

Question 10

A sweet, colorless, oily substance that is used as a moisturizer in skin and body creams

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glycerin

Question 11

An ion with a positive electrical charge is considered to be

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a cation

Question 12

The rapid oxidation of a substance, accompanied by the production of heat and light

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combustion

Question 13

A chemical combination of matter in definite (fixed) proportions is a

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pure substance

Question 14

The simplest form of chemical matter that cannot be broken down without the loss of identity is

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element

Question 15

A stable physical mixture of two or more substances in a solvent is

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solution

Question 16

Chemically combining two or more atoms produces a

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molecule

Question 17

All haircolor products are organic chemicals, which means they

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contain carbon and hydrogen

Question 18

A solution with a pH value of seven indicates

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neutral

Question 19

What state of matter has a definite volume but takes the shape of its container?

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Liquid

Question 20

What is the study of substances that lack the element carbon, may contain the element hydrogen?

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Inorganic chemistry

Question 21

The basic unit of matter with a nucleus at the center surrounded by negatively charged electron

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atom

Question 22

There are _____ naturally occurring elements

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98

Question 23

Having an affinity or attraction to fat and oils (oil-loving

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lipophilic

Question 24

The branch of science that applies to substances that contain carbon is called _____ chemistry.

Accepted Answer

organic

Question 25

Sodium chloride is an example of

Accepted Answer

compound molecule

Chapter 12

Questions 25

Chapter 12

Questions 25