Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1.
|
The branch of science that applies to substances that contain carbon is
called:
a. | inorganic chemistry | c. | matter chemistry | b. | organic chemistry | d. | structural
chemistry |
|
|
|
2.
|
Any substance that occupies space is considered to be:
a. | organic | c. | matter | b. | form | d. | units |
|
|
|
3.
|
The simplest form of matter that cannot be broken down without the loss of
identity is a(n):
a. | element | c. | substance | b. | energy | d. | mineral |
|
|
|
4.
|
There are how many naturally occurring elements, each with its own distinctive
physical and chemical properties?
|
|
|
5.
|
The difference between one element and another is the number of:
a. | atoms they contain | c. | occupying elements | b. | deionized elements | d. | balanced atoms |
|
|
|
6.
|
Chemically joining two or more atoms produces a:
a. | mixture | c. | molecule | b. | substance | d. | miscible |
|
|
|
7.
|
The chemical compound sodium chloride is:
a. | shampoo | c. | sugar | b. | table salt | d. | distilled water |
|
|
|
8.
|
The chemical combination of two or more atoms of different elements produces
a(n):
a. | compound | c. | neutral | b. | solution | d. | acid |
|
|
|
9.
|
Change in the form of a substance that does not cause a chemical change is
a(n):
a. | anion change | c. | matter change | b. | solid change | d. | physical change |
|
|
|
10.
|
Matter that has a fixed chemical composition and distinct properties is
a:
a. | physical mixture | c. | pure substance | b. | physical blend | d. | pure
combination |
|
|
|
11.
|
A combination of two or more substances that are physically blended but not
chemically joined is a:
a. | physical mixture | c. | pure substance | b. | chemical change | d. | chemical
compound |
|
|
|
12.
|
Liquids that can be mixed with each other without separating easily are:
a. | incompatible | c. | solvents | b. | miscible | d. | compatible |
|
|
|
13.
|
A blended mixture of two or more liquids is a:
a. | solvent | c. | solution | b. | solute | d. | emulsion |
|
|
|
14.
|
A substance, usually liquid, that dissolves another substance to form a solution
is a(n):
a. | solvent | c. | solute | b. | immiscible | d. | solid |
|
|
|
15.
|
Liquids that are not capable of being mixed into stable solutions are:
a. | liquids | c. | minerals | b. | toxins | d. | immiscible |
|
|
|
16.
|
Suspensions differ from solutions in that suspensions contain particles that
are:
a. | emulsified | c. | invisible | b. | undissolved | d. | elements |
|
|
|
17.
|
Substances that act as a bridge to allow oil and water to mix are:
a. | suspensions | c. | particles | b. | mixtures | d. | surfactants |
|
|
|
18.
|
A stable suspension of one liquid or solid in another liquid united with the aid
of a binder is a(n):
a. | synthesis | c. | suspension | b. | emulsion | d. | solution |
|
|
|
19.
|
The head of a surfactant molecule is:
a. | lipophilic | c. | hydrophilic | b. | aquatic | d. | hypersonic |
|
|
|
20.
|
Substances used to neutralize acids or raise the pH of many hair products
are:
a. | automatic | c. | carbons | b. | alkanolamines | d. | resolute |
|
|
|
21.
|
An example of an ammonia compound that is used to raise the pH of hair
is:
a. | ionization hydroxide | c. | glycerin substance | b. | ammonium hydroxide | d. | silicone
solutions |
|
|
|
22.
|
A sweet, colorless, oily substance that is used as a moisturizer in skin and
body creams is:
a. | silicone | c. | glycerin | b. | ammonia | d. | alkanolamines |
|
|
|
23.
|
A common volatile organic compound that evaporates quickly and is used in hair
spray is:
a. | ionized water | c. | hydrogen peroxide | b. | ammonia water | d. | ethyl alcohol |
|
|
|
24.
|
An atom or molecule that carries an electrical charge is a(n):
a. | solution | c. | current | b. | ion | d. | resolute |
|
|
|
25.
|
Ions with a positive electrical charge are considered to be:
a. | nonaqueous | c. | neutral | b. | cation | d. | anion |
|
|
|
26.
|
A solution with a pH value of 7 indicates a:
a. | volatile solution | c. | neutral solution | b. | aqueous solution | d. | acidic solution |
|
|
|
27.
|
Another term that is used interchangeably to describe an alkali is:
a. | foundation | c. | base | b. | metal | d. | acid |
|
|
|
28.
|
Chemical reactions that are characterized by or formed by giving off heat
are:
a. | neutralization | c. | electrons | b. | acidic | d. | exothermic |
|
|
|
29.
|
A chemical reaction that combines an element or compound with oxygen to produce
an oxide is:
a. | neutralization | c. | oxidation | b. | neuron | d. | sensitization |
|
|
|
30.
|
When oxygen is subtracted from a substance, the chemical reaction is
called:
a. | removal | c. | suspended | b. | reduction | d. | transferred |
|