chapter 12

Question 1

all hair color products are organic chemicals , which means they what?

Answer 1

contain carbon and hydrogen

Question 2

what si the study of substances that lack the element carbon , but contain the element hydrogen?

Answer 2

inorganic chemistry

Question 3

a characteristic of all inorganic substances is that they what

Answer 3

lack carbon

Question 4

the simplest for of chemical matter that cannot be broken down without the loss of identity is a(n)?

Answer 4

element

Question 5

there are how many naturally occurring elements, each with its own distinct physical and chemical properties?

Answer 5

98

Question 6

the basi unit of matter , with a nucleus at the center surround by negatively charged electrons that move around the muscles in orbits, is a(n)?

Answer 6

atom

Question 7

chemically combining two or more are produces a what?

Answer 7

molecule

Question 8

the chemical combinations of two or more atoms of different elements product a what?

Answer 8

compound

Question 9

sodium chloride is an example of a

Answer 9

compound molecule

Question 10

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

Answer 10

liquid

Question 11

what is an example of a chemical property

Answer 11

ability to rust

Question 12

change in the form of a substance that does not cause a chemical reaction is a what change

Answer 12

physical

Question 13

the oxidation of hair color is an example of a

Answer 13

chemical change

Question 14

what type of chemical reaction results int eh oxidizing agent being reduced and the reducing agent being oxidized

Answer 14

redox

Question 15

chemical reactions that are characterized by giving off heat are

Answer 15

exothermic

Question 16

the rapid oxidation of a substance, accompanied by the production of heat and light is know as what?

Answer 16

combustion

Question 17

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

Answer 17

pure substance

Question 18

air contains many substances, including nitrogen,, carbon dioxide, and water vapor, and is an example of a what

Answer 18

physical mixture

Question 19

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

Answer 19

solution

Question 20

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

Answer 20

solvent

Question 21

mutually soluble liquids that can be mixed together to form clear solutions are what

Answer 21

miscible

Question 22

what and alcohol are what

Answer 22

examples of miscible liquids

Question 23

an unstable physical mixture of two or more immiscible substances is a what

Answer 23

emulsion

Question 24

substance that allow oil and water to mix, or emulsify are what

Answer 24

surfactants

Question 25

being “capable of combining with or attacking water (water-loving)” is defined as

Answer 25

hydrophilic

Question 26

” Having an affinity or attraction to fat and oils (oil-loving)” is defined as

Answer 26

lipophilic

Question 27

what is an example of an oil in water emulsion of tow immiscible liquids

Answer 27

cold cream

Question 28

substances used to neutralize acids or raise the pH of many hair products are

Answer 28

alkanolamines

Question 29

what is an example of an ammonia compound that is used to perform chemical services in a salone

Answer 29

ammonium hydroxide

Question 30

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

Answer 30

glycerin

Question 31

a common volatile organic compound used in hair spray is

Answer 31

ethyl acohol

Question 32

an atom or molecule that carries an electrical charge is a

Answer 32

ion

Question 33

what term refers to the separation of an atom or molecule into positive and negative ions

Answer 33

ionization

Question 34

an ion with positive electrical charge is considered to be

Answer 34

a cation

Question 35

a solution with a pH value of seven indicates a what solution

Answer 35

neutral