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Chapter 7 Chemistry Flashcards | StudBud
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Chapter 7 Chemistry
Chapter 7 Chemistry
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Chemistry
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
A permanent mixture of 2 or more substances bound with the aid of a binder is:
emulsion
cream
suspension
solution
2
Organic Chemistry is the study of all substances containiing:
Sulfur
Carbon
Hydrogen
Nitrogen
3
An example of a chemical is:
Electricity
Water
All answers
Light
4
The range of a pH scale is
0-25
1-14
0-14
0-100
5
Oily skin is considered more acid
False
True
6
The Lipophilic, or oil loving is this part of the sufractant molecule
Body
Tail
Atom
Head
7
Air's composition by volume consists of
3 Parts Oxygen 4 Parts Nitrogen
1 Part Oxygen 4 Parts Nitrogen
1 Part Nitrogen 5 Parts Oxygen
Equal Parts Oxygen and Nitrogen
8
Preparation made by breaking down a solid, liquid or gaseous substance in another is:
an emulsion
a suspension
a solution
a redox
9
Refers to simplest form of chemical matter:
cell
element
molecule
atom
10
The head of a sufractant molecule is called ___, water loving
hydrophilic
aquaphlic
oilphilic
lipophilic
11
A pH of 9 is __ times more alkaline than 8
20
10
5
100
12
Sugar in grapes is converted into ___ when fermented to make wine.
Water
Ethyl Alcohol
Juice
Isopropyl Alcohol
13
Pure H2O is considered ___ at a pH of 7
neutral
Alkaline
mineral
Acid
14
There are this many naturally occurring elements:
90
22
117
70
15
Skins Barrier Mantle is a protective layer of lipids and secretions on the surface of the skin
False
True
16
What color does a Base turn red Litmus paper:
White
Blue
Yellow
Purple
17
Most commonly used cosmetic ingredient:
Perfumes
Talc
Mineral oil(petrolatum)
Water
18
Redox is short for
reaction -oxidation
reduction- oxidation
oxidation-reduction
inorganic- reaction
19
Seperating of a substance into Ions
Iontophoresis
Ionization
Deionization
Cation
20
Alkali A.K.A.
metal
redox
base
nonmetal
21
Skin's pH is between
none of the above
4-7
4.5-5.5
3.5-6.5
22
Changing the properties of a substance without forming a new one is:
emulsion
physical change
chemical change
mixture
23
Molecules are formed by joining 2 or more ___ chemically
neutrons
atoms
anions
myons
24
A substance combined with Oxygen then becomes
solute
reduced
suspended
oxidized
25
An example of O/W ( oil in Water) emulsion
thick cream
hair groomer
cleansing milk
moisturizing lotion
26
Inorganic Substance example:
metal
minerals
all answers
glass
27
2 or more elements combine chemically to form a new substance called:
solution
suspension
compund
emulsion
28
A properly stored emulsion will remain stable atleast
5 years
7 years
8 months
3 years
29
Seperating of a substance into ions is:
compound
decomposition
ionization
deionization
30
These are substances used to neutralize acids or raise the pH in many hair products
Neurons
Alcohols
Alkanolamines
Ammonia