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BR106 Chemistry Chapter 7 Flashcards | StudBud
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BR106 Chemistry Chapter 7
BR106 Chemistry Chapter 7
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1
The ____ of a substance measures its acidity and alkalinity.
melting point
hardness
pH
boiling point
2
Soft water comes from ____ or chemically treated water.
underground
the tap
a spring
rainwater
3
The oil-loving tail of a surfactant molecule is called ____.
miscible
lipophilic
hydrophilic
oxidation
4
Only ____ solutions have pH.
aqueous
soft
liquid
gaseous
5
____ is an example of a compound molecule.
Sodium chloride
Iron
Copper
Aluminum foil
6
Chemical reactions that release ____ are called exothermic.
heat
oxygen
light
smell
7
____ are usually water-based emulsions.
Deodorant soaps
Glycerins
Cleansing creams
Cleansing lotions
8
As steam, ____ is in a gaslike state.
carbon
hydrogen
water
oxygen
9
A ____ is any substance that is dissolved into a solvent to form a solution.
solvent
solute
liquid
solution
10
A hydrogen peroxide solution is used as a bleaching agent for the hair in solutions of ____ volume.
20 to 40
40 to 50
4 to 10
15 to 30
11
____ chemistry is the study of substances that do not contain carbon but may contain hydrogen.
Inorganic
Organic
Life-based
Biologic
12
Chemical compounds are classified as acids, salts, ____, and bases.
elements
solutions
oxides
atoms
13
A(n) ____ is a compound of any element combined with oxygen.
organic compound
base
oxide
inorganic compound
14
A(n) ____ cannot be broken down into a simpler substance without a loss of identity.
atom
molecule
matter
element
15
When acids and alkalis are mixed together, if there are ____, they neutralize each other.
equal proportions
more alkalis than acids
more acids than alkalis
None of the answers are correct.
16
Chemical changes in the hair can be created with ____ because the chemical reaction of oxidation takes place.
shampooing
styling products
blowdrying
permanent haircolor
17
The mixtures called ____ are not usually transparent.
solutes
saturated solutions
suspensions
dilute solutions
18
Type of shampoo helps to rebalance the pH level of the hair removing unwanted residues that remain in the hair after ch
pH-balanced shampoo.
Neutralizing shampoo.
Balancing shampoo.
Conditioning shampoo.
19
The pH of hair and skin is an average of ____.
8.0
7.0
6.0
5.0
20
When hydrogen peroxide is mixed with an oxidation haircolor product, the haircolor product gains ____.
carbon
hydrogen
oxygen
nitrogen
21
Minerals are ____ substances.
carbon-based
inorganic
living
cell-based
22
A substance from which ____ has been chemically removed is a reduced substance.
carbon
oxygen
hydrogen
nitrogen
23
Hard water may be softened by ____, water-softening units, or by adding sodium carbonate.
adding an acid
distillation
boiling
adding sodium chloride
24
____ are a special type of oil that does not cause comedones.
Olive oils
Mineral oils
Silicones
Walnut oils
25
What is formed when two or more atoms combine chemically in definite proportions?
Elements.
Molecules.
Compounds.
Atoms.
26
An example of a ____ mixture is concrete.
carbon
elemental
physical
chemical
27
An example of a ____ is aluminum foil.
salt
gas
liquid
pure substance
28
Which type of conditionersare also known as rinse-out conditioners?
Instant conditioners.
Leave-in conditioners.
Treatment conditioners.
Medicated conditioners.
29
____ have a pH above 7.0 and soften and swell the hair.
Acids
Alkalis
Liquids
Compounds
30
Which type of conditioner are formulated to help control minor dandruff and scalp conditions?
Instant conditioners.
Leave-in conditioners.
Medicated conditioners.
Treatment conditioners.
31
Pure water has a(n) ____ pH.
None of the answers are correct.
acidic
alkaline
neutral
32
An example of an emulsion is ____.
glycerin
water
salad dressing
mayonnaise
33
In which state does matter have volume but no definite shape?
Solid.
Gas.
Liquid.
Vapor.
34
Solutions with a pH ____ contract and harden the hair.
below 7.0
above 12.0
below 4.0
above 7.0
35
In the chemical reaction called ____, an element or compound combines with oxygen to produce an oxide.
redox
reduction
oxidation
carbonization
36
The percentage of the human body that is composed of ____ is 65 percent.
muscle
bone
water
skin
37
Dissolving a ____ substance in another substance produces a solution.
iquid and solid
gas
solid and gas
solid, liquid, or gas
38
____ are referred to as a redox reaction.
Chemical changes
Oxidation and reduction
Water and pH changes
Acid and alkali neutralization reactions
39
Type of shampoo is known as a mild shampoo that contains humectants designed to "lock in" the moisturizing properties.
Conditioning shampoo.
Clarifying shampoo.
Neutralizing shampoo.
Medicated shampoo.
40
Compound molecules are chemical combinations of ____ of different elements.
organic matter
two or more atoms
electrons
three molecules
41
Which type of shampoo washes away excess oiliness while keeping the hair from drying out?
Balancing shampoo.
Conditioning shampoo.
pH-balanced shampoo.
Neutralizing shampoo.
42
The ingredient in moisturizing creams that ____ is called a humectant.
creates barrier allows the natural water and oil of the skin to accumulate
aids in absorption
provides a pleasant smell
creates a non-greasy feel
43
____ properties include melting and boiling points.
Elemental
Physical
Matter
Chemical
44
The ____ used in the manufacturing of cosmetics is/are processed by distilling.
matter
elements
water
minerals
45
Substances that are ____ are easy to mix together.
miscible
reduced
redox
soluble
46
Which type of conditioners can be designed for use with thermal tools?
Medicated conditioners.
Instant conditioners.
Leave-in conditioners.
Treatment conditioners.
47
A physical mixture is a combination of ____ substances united physically in any proportions without a fixed composition.
two or more
exactly two
exactly three
five or more
48
The pH scale is a ____ scale.
ordinal
logarithmic
linear
numerical factor
49
____ is a colorless gas composed of hydrogen and nitrogen.
Oxygen
Carbon dioxide
Ammonia
Air
50
Which type of conditioners have penetrating formulations that help restore moisture and protein in the hair?
Treatment conditioners.
Leave-in conditioners.
Instant conditioners.
Medicated conditioners.
51
____ are physical mixtures of two immiscible liquids held together by an emulsifying agent.
Emulsions
Concentrated solutions
Dilute solutions
Suspensions
52
____ remove superfluous hair by dissolving it at the skin line.
Acids
Shaving soaps
Deodorant soaps
Depilatories
53
____ chemistry is the study of substances that contain the element carbon.
Organic
Biologic
Inorganic
Life-based
54
____ is/are anything that occupies space, has mass, and has physical and chemical properties.
Organic substances
Energy
Matter
Inorganic substances
55
Which type of shampoo contains antifungal agents to suppress the growth of malassezia?
Neutralizing shampoo.
Clarifying shampoo.
Medicated shampoo.
pH-balanced shampoo.
56
____ are made by mixing plant oils or animal fats with strong alkaline substances.
Soaps
Scalp lotions
Surfactants
Solutions
57
Atoms are ____.
the largest units in a living thing
the smallest units in a non-living thing
the basic building blocks of all matter
also called compounds
58
An atom or molecule that ____ is called an ion.
is in a gaseous state
carries an electrical charge
is made from water
is in a solid state