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Milady F Ch. 6 Chemistry and Chemical Safety Flashcards | StudBud
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Milady F Ch. 6 Chemistry and Chemical Safety
Milady F Ch. 6 Chemistry and Chemical Safety
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Answers
1
When two or more atoms are joined together chemically, a(n) ______ is created.
molecule
atom
electron
neuron
2
What does PH stand for ?
Probable H2O
Potential hydrogen
Pure Hydrochloric acid
Productively high
3
_____ are the basic unit of matter
Electrons
Protons
Atoms
Neutrons
4
What is the basic unit of matter that cannot be divided into simpler substances by ordinary chemical means?
neutron
electron
proton
atom
5
Because it has the ability to dissolve more substances than any other solvent, ___ is known as the universal solvent.
ethyl alcohol
isopropyl alcohol
hydrogen peroxide
water
6
A(n) _____________ agent is a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound.
oxidizing
hydrogen
reacting
reducing
7
Nail polish containing glitter is an unstable physical mixture of undissolved particles in a liquid, which is known as ?
solution
surfactant
suspension
emulsion
8
When a substance gains oxygen, the substance is _______?
reduced
suspended
subtracted
oxidized
9
Incompatible products are chemicals that ______.
must be shaken before use as they tend to separate
are impossible to mix together
cannot be used on the human skin
should not be mixed or stored near each other
10
In saltwater, Salt is the solute and water is the solvent
True
False
11
Immiscible liquids are combined, they form____
Solutions
Stable mixtures
Suspensions
Miscible liquids
12
Any substance that occupies space and weight & has physical and chemical properties is ____
A beauty product
Potentially dangerous
Matter
A chemical
13
Overexposure principal is used to describe how overexposure determines ___
Toxicity
Immunity
Safety
Tolerance
14
What is the ph of skin and hair
4
3
7
5
15
______ liquids are liquids that mix easily?
Miscible
Immiscible
Incompatible
Compatible
16
How many elements occur naturally in Earth?
19
89
18
98
17
Why should beauty professionals study and have a thorough understanding of chemistry?
Products used in beauty and wellness contain chemicals
Chemistry experiments are often regular practice at salons/ spas
Clients often quiz beauty professionals on this important knowledge
It is unrelated to the safe operation of a salon/ spa
18
PH scale is used to measure
Acidity and alkalinity
Levels of oxygen
Overexposure and underexposure
Levels of carbon dioxide
19
Pure water with a pH of seven is considered to be _____?
acid
mineral
alkaline
neutral
20
A(n) ___ is a mixture of two or more substances that are united with the aid of a binder.
emulsion
ointment
solution
suspension
21
is a combination of substances that are held together by physical rather than chemical ties
compound
synthesis
physical mixture
solvent
22
Everything you can touch and everything you can see is matter EXCEPT _____
Liquid and gases
Living and once-living bodies
Chemical and powders
Light and electricity
23
Atoms cannot be divided into simpler substances by ordinary chemical means
False
True
24
How many elements are known to science today?
18
108
118
81
25
Substances that act as a bridge to allow oil and water to mix or emulsify are___.
surfactants
compounds
solutions
miscibles
26
Which of the following is an example of a compound molecule ?
The oxygen we breathe
The ozone layer
Pure nitrogen
Common table salt
27
A product with a pH of 8.9 is considered to be
neutral
balanced
alkaline
acid
28
Redox is a contraction for ______ ?
organic creation
reduction-oxygenation
oxidation-reduction
reaction-oxidation
29
____ include safety information about products, compiled by the manufacturer and required by law?
EPA
OSHA
SDS
MSDS
30
What’s an example of a chemical change
Liquid nail polish hardening
Ice melting to become water
Exposed metal rusting
Water evaporating into the air