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Chemistry Review Flashcards | StudBud
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Chemistry Review
Chemistry Review
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Answers
1
How many elements are known to science & how many are natural?
118
98
90
18
2
OSHA doesn’t require spas to have an SDS
True
False
3
Suspension
Mix of unstable substances, stabilized w/ an emulsifier
A surfactant
Hydrophilic molecule
Unstable mixtures of undissolved substances
4
An oxidizing agent releases oxygen
True
False
5
What does combustible mean?
Material that is capable of igniting & burning
Overexposure
pH balance
Suspension
6
All beauty products contain chemicals
False
True
7
Also known as bases
Molecules
Emulsions
Acids
Alkalis
8
Overexposure
Is potential Hydrogen
Neutralization reaction
Long or repeated exposure to ingredients that can cause sensitivities
Allergic Contact Dermatitis
9
A reducing agent adds:
hydrogen
O/W
W/O
Emulsions
10
SDS have 9 accepted pictograms
False
True
11
Define Emulsion
A mixture of immiscible substances w/ an emulsifier
A substance that releases oxygen
unstable mixture of undesolved particles in liquid
A stable mix of 2 or more substances
12
Combustible liquid has a flash point of 100 & 200 degrees
True
False
13
What is the average ph for skin?
2
9
3
5
14
Average skin PH is 5
True
False
15
All SDS are formatted into how many categories?
18
16
10
11
16
A physical change is in form only
False
True
17
combustion of a substance, produces heat & light, accompanies by rapid oxidation
True
False
18
SDS are designed for use in an emergency
False
True
19
Hair & skin have an average pH of what number ?
5
4
6
8
20
The head of a water loving surfactant molecule is
Hydrophilic
Lipophilic
Aquaphilic
Oilophilic
21
Acids owe their chemical reactivity to:
Endothermic reaction
hydrogen ions
Combustion
Surfactants
22
Alkaline owe their chemical reactivity to hydrogen ions.
True
False
23
An oxidizing agent, releases oxygen
False
True
24
Give 2 examples that are NOT matter
Electricity
Atoms
Cold cream
Light
25
What are compound molecules?
Two or more atoms of different elements
Surfactants
a molecule containing 2 or more atoms of the same element
Atoms
26
Molecules
The basic unit of matter with a nucleus
A chemical combination of 2 more atoms
The simplest form of chemical matter with 1 atom
A physical change
27
Endothermic reaction absorbs heat from an external source, for the reaction to occur
False
True
28
You can dispose of a chemical in its original container
False
True
29
What should you use when measuring chemicals?
Paper plates
Solo cups
Measuring spoon
Measuring cups
30
What are elemental molecules?
Emulsions
a molecule containing 2 or more atoms of the same element
Molecules of 2 or more atoms of different elements
Suspension
31
Incompatible means, ingredients should be mixed & stored near each other
True
False
32
Oxidation reduction is known as:
Suspension
Redox
Emulsion
Combustion
33
Define carcinogen
A combustible
A substance that causes cancer
An emulsifier
An atom
34
Types of mixtures with different characteristics
Solvent
Solution
Suspension
Emulsions
35
Elements
A physical change
A chemical combination of 2 more atoms
The basic unit of matter with a nucleus
The simplest form of chemical matter with 1 atom
36
What is an element?
the smallest unit of an element
A type of molecule made up of different atoms
A pure form of matter made up of an atom
Fire is one of the four classical elements
37
Pure distilled water has a PH of
7.0
8.0
2.6
5.0
38
Define chemistry
The study of skin & its diseases
Rapid oxidation of energy
A compound molecule
The study of chemicals & chemical changes
39
An Atom is the smallest unit of an element
True
False
40
Atoms
A physical change
A chemical combination of 2 more atoms
The basic unit of matter with a nucleus
The simplest form of chemical matter with 1 atom
41
Define Solution
A stable mix of 2 or more substances
W/O
A solvent
An unstable mix of 2 or more substances
42
Acid-alkali Neutralization reaction
A reducing agent
Oxidation
When acid & alkali are mixed equal, pH is balanced, forming water & salt
Endothermic response
43
Most states have regulations for the disposal of chemicals used in the salon or spas.
True
False
44
Cold cream is an example of what kind of emulsion
W/O
Solvent
O/W
Salute
45
A reducing agent:
adds hydrogen to a chemical compound
An emulsifier
subtracts oxygen from the compound
A salute
46
Chemical change
Alters the composition into a new substance
Is a measure of acidity & alkalinity
Is an Overexposure
Is a Neutralized reaction
47
Oils, waxes, & nail polish have a pH
True
False
48
Define solvent
The acidity & alkalinity of substances
An endothermic reaction
The substance that dissolves the solute
A carcinogen
49
Manufactures of chemicals are not held to strict standards by EPA or FDA
False
True
50
Select side with O/W emulsion
Left side
Right side
51
Soaps were the first surfactants
False
True
52
Ice melting is a result of an:
Combustion
Endothermic Reaction
Physical reaction
Exothermic Reaction
53
Exothermic reaction releases heat
False
True
54
A solution is a stable mixture of 2 or more substances
False
True
