stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry Ch 12 Flashcards | StudBud
Explore
/
Chemistry Ch 12
Chemistry Ch 12
49 terms
·
StudBud Administration
·
190 plays
#coschem #sccbeauty
Flashcards
49 cards
F
Practice quiz
P
Host live
L
Questions
49
Answers
1
A reducing agent is a substance that + ___ to a chemical compound or - oxygen from the compound
nitrogen
potassium
hydrogen
carbon
2
Protons are subatomic particles with which type of charge?
neutral
negative
positive
sometimes positive, sometimes negative
3
If two liquids are mutually soluble, they are considered:
suspensions
pure
immiscible
miscible
4
A chemical combination of matter in a definite proportion is called a (an):
emulsion
compound
physical mixture
pure substance
5
Which of the following is an example of a chemical property?
glossiness
ability of wood to burn
melting point
solubility
6
Only products that contain ___ can have a pH.
silicon
potassium
water
carbon
7
Rapid oxidation of a substance, plus heat and light is called:
emulsification
combustion
reduction
ionization
8
A (n) ___ releases a significant amount of heat.
chemical change
physical change
endothermic reaction
exothermic reaction
9
A (n) ____ is a chemical comb. of two or more atoms in definite proportions.
cell
molecule
element
ion
10
An atom or molecule that carries any electrical charge is called a(n):
cation
alkali
ion
anion
11
A(n) ___ is an alkaline substance used to neutralize acids to raise the pH of hair products.
silicones
volatile alcohol
glycerin
alkanolamines
12
Substances lacking the element ___ are classified as inorganic.
oxygen
silicon
carbon
hydrogen
13
An elemental molecule is a molecule containing:
2 or more atoms of 2 dif. elements in definite proportions
a single atoms
2 or more atoms of the same element in definite proportions
2 or more atoms of the same element in indefinite proportion
14
The ___ is the substance that is dissolved into a solution.
solvent
emulsion
surfactant
solute
15
Which statement about surfactant molecules is correct?
The head and tail are both lipophilic
The head is hydrophilic and the tail is lipophilic
The head and tail are both hydrophilic
The head is lipophilic and tail is hydrophilic
16
Which of the following is NOT a physical mixture?
suspension
element
solution
emulsion
17
A stable physical mixture of 2 or more substances is a(n):
solution
emulsion
suspension
element
18
A ___ substance that allows oil and water to mix, or emulsify.
solvent
surfactant
reducing agent
solute
19
Nail polish is an example of a(n):
surfactant
solution
suspension
emulsion
20
A(n) ___ is an unstable physical mixture of undissolved particles in a liquid.
solvent
solution
emulsion
suspension
21
Characteristics of matter that do not involve chemically changing a substance are called:
physical properties
chemical properties
static properties
primary properties
22
A(n) ___ is a substance that dissolves another substance to form a solution.
solute
emulsifier
element
solvent
23
A substance's state of matter depends on its:
temperature
atomic number
size
electrical charge
24
An oxidizing agent:
releases oxygen
absorbs oxygen
transforms another element into oxygen
transforms oxygen into another element
25
There are ___ naturally occurring elements.
98
131
79
118
26
The study of substances that contain carbon is called ___ chemistry.
organic
inorganic
structural
natural
27
When a substance undergoes a ___ change, a new substance with dif. properties is created.
chemical
physical
primary
static
28
Which of the following is a special type of oil used in water-resistant lubricants for skin?
ammonia
alkanolamine
glycerin
silicone
29
Any substance that occupies space and has mass (weight) is considered:
carbon
light
energy
matter
30
Which of the following is a colorless gas with a pungent odor composed of hydrogen and nitrogen
silicone
glycerin
ammonia
alkanolamine
31
Steam is an example of a:
ion
liquid
solid
vapor
32
Sodium hydroxide, commonly known as ___, is a very strong alkali used in chem. hair relaxers.
bleach
hydrogen peroxide
lye
salt
33
Ointments, pastes and pomades are:
powders
emulsions
solutions
semisolid mixtures
34
Pure water has a pH of:
7
0
10
5
35
An ion with a positive electrical charge is called a(n)?
alkali
cation
base
anion
36
In an oxidation-reduction reaction:
oxidation occurs before reduction
oxidation and reduction occur simultaneously
neither oxidation nor reduction occurs
reduction occurs before oxidation
37
The simplest form of chemical matter is a(n):
cell
element
neutron
atom
38
Which of the following is also called a base, is a compound, reacts with acids to form salts?
alkali
cation
emulsifier
anion
39
Two or more immiscible substances combine with a special binding ingredient to create a(n):
solution
suspension
solvent
emulsion
40
A water-in-oil emulsion:
is a type of powder
does not feel greasy
has water droplets emulsified in oil
has oil droplets emulsified in water
41
Which of the following is an oily substance used as moisturizer in skin and body creams?
ammonia
glycerin
silicone
alkanolamine
42
Rubbing alcohol and hair spray are examples of:
ammonias
silicones
volatile alcohols
alkanolamines
43
A(n) ___ is a chemical combination of two or more atoms in fixed proportions.
ion
cell
element
molecule
44
The term pH represents the quantity of ___ ions.
hydrogen
oxygen
carbon
nitrogen
45
Matter does NOT exist in which form?
gas
liquid
solid
energy
46
When stored under ideal conditions, a properly formulated emulsion can be stable for up to:
6 months
3 months
3 years
1 year
47
When acids and alkalis are mixed together in equal proportions, they form:
salt
water
carbon
nitrogen
48
Volatile organic compounds contain ___ and evaporate very easily.
hydrogen
carbon
nitrogen
oxygen
49
A ___ is a physical combination of matter in any proportions,
physical mixture
solvent
pure substance
compound