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Chapter 102.11-102.13 Chemistry Flashcards | StudBud
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Chapter 102.11-102.13 Chemistry
The simplest atomic structure is:
In what pH range is skin and hair?
Chapter 102.11-102.13 Chemistry
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Answers
1
In what pH range is skin and hair?
7.5 to 10.5
4.5 to 5.5
6.5 to 7.0
11.5 to 12.0
2
The simplest atomic structure is:
sulfur
hydrogen
oxygen
carbon
3
All of the following statements regarding pH are true EXCEPT:
values below 7 indicate more alkalinity
values below 7 indicate more acidity
7 indicates a neutral substance
pH of 4 is acidic
4
Which of the following statements about surfactants is NOT true?
prevents shampoo from lathering
contains a hydrophilic molecule
used to remove oil from the hair
contains a lipophilic molecule
5
The ability of hair to absorb moisture, liquids or chemicals refers to the hair's:
manageability
porosity
elasticity
texture
6
The term used to identify anything that occupies space and has weight is called
a solid
organic
a gas
matter
7
Which of the following shampoo types is designed to treat scalp and hair problems or disorders?
color shampoo
medicated shampoo
powder dry shampoo
anti-dandruff shampoo
8
Atoms that are the same form a(n):
element
compound
mixture
emulsion
9
Atoms have three main parts: protons, neutrons and:
compounds
electrons
elements
neutrons
10
A solution that has more positive hydrogen ions than negative hydroxide ions is:
acidic
alkaline
slightly alkaline
neutral
11
Which of the following actions is NOT an example of a physical change?
performing a thermal style
performing a haircut
iron changing to rust
shattering a piece of glass
12
Which classifications would identify emulsions are generally used in the cosmetology industry?
deodorant
loose particles
oil-in-water emulsion
water-in-oil emulsion
13
What is the name given to purifying water by passing it through a porous substance?
sedimentation
filtration
hydrophilic
emulsion
14
When a solution has an equal number of hydrogen and hydroxide ions, the solution is considered:
acidic
neutral
negative
positive
15
When amino acids combine to form the protein of the hair:
the hair’s amino acid content will increase
they take on a spiraling configuration
the hair’s amino acid content will decrease
they form a new amino acid group
16
The oil-loving part of a surface active agent is called:
lipophilic
hydrophilic
surfactant
emulsifier
17
Neutrons have which type of electrical charge?
chemical
positive
negative
none
18
All matter that is now living or was alive, w/ carbon, falls within the scientific division of
anatomy
organic chemistry
physics
inorganic chemistry
19
Cleaning hair/scalp & removing foreign matter without adversely affecting scalp/hair is called
shampooing
rinsing
conditioning
relaxing
20
Which bonds found in the hair can be easily broken by heat or water?
hydrogen bond
salt bond
van der Waals forces
peptide bond
21
On the pH scale, numbers less than 7 indicate a(n):
acidic solution
alkaline solution
neutral solution
chemical solution
22
Most ingredients for conditioners are proteins derived from:
soft water
lemon rinses
cream rinses
animal or vegetable materials
23
What is the side bond that is of the greatest concern to the salon professional?
hydrogen bond
disulfide bond
van der Waals forces
salt bond
24
Matter with definite weight and volume but no definite shape is called:
organic
a gas
a solid
a liquid
25
Putting a sodium hydroxide relaxer under a hair dryer:
will link together all protein groups
could break critical peptide bonds& destroy proteinstructure
will increase the hair’s amino acid content
could turn into van der Waals forces
26
A substance that is able to dissolve another substance is called a(n):
powder
solvent
emulsion
ointment
27
Acid rinse (pH of 2-3) designed to dissolve soap scum,untangle & separate hair & add sheen is a
conditioner
vinegar rinse
cream rinse
medicated rinse
28
The type of rinse used to control minor dandruff and scalp conditions is a:
vinegar and lemon rinse
conditioning rinse
cream rinse
medicated rinse
29
Which of the following shampoos would NOT be used for chemically treated or damaged hair?
acid-balanced shampoo
plain shampoo
all-purpose shampoo
non-stripping shampoo
30
If label lists ingr: water, cetyl alcohol which ingr would be found to have the largest amount?
cetyl alcohol
tocopherol
water
panthenol
