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Cosmo Chemistry
Cosmo Chemistry
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Chapter 6 (foundations)
Flashcards
44 cards
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Practice quiz
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Questions
44
Answers
1
Of all the elements known to science today,how many occur naturally on earth?
18
89
98
19
2
If your client requests that you use a solution that is neutral to her skin, which of the following pHs should you use?
A pH of 14
A pH of 5
A pH of 7
A pH of 0
3
Cold cream is an example of oil-in-water emulsion of two immiscible liquids
False
True
4
A solvent is a substance which dissolves a solute.
False
True
5
Which of the following should you be sure to do when mixing chemicals?
use a measuring device, such as measuring cup or spoon
add the water to the chemical, not the other way around
avoid room or areas that are well ventilated
never use secondary containers such as spray bottles.
6
How many elements are known to science today?
18
118
108
81
7
What is a molecule?
A molecule containing two or more different elements
The most basic unit of matter
The most basic unit of life
Any two or more atoms that share electrons
8
What is the product of Neutralization?
Salt & Oxygen
Salt & Carbon Dioxide
Salt & Hydrogen
Salt & Water
9
What is it called when you dissolve salt into a liquid
Solvent
Mixture
Colloid
Solute
10
What is a reducing agent?
A substance that brings about reduction by being reduced
A substance that brings about reduction by being oxidised
A spy that reduces his targets lifespan
A substance that brings about oxidation by being reduced
11
Which of the following is TRUE of products that are incompatible?
They should never be used on clients.
No two should be stored next to each other.
They are always considered dangerous.
They can be safely mixed with proper precautions.
12
The freezer door is open all night, all of the ice you had would melt. This would be a result of ___
neutralization
an endothermic reaction
ionization
an exothermic reaction
13
What are unstable mixtures of two or more immiscible substances?
emulsion
solutions
reductions
suspensions
14
What scale is used to measure the strength of acids and bases?
pH scale
bathroom scale
triple beam balance
Richter scale
15
What is the overexposure principle used to describe?
How overexposure determines immunity
How overexposure determines tolerance
How overexposure determines safety
How overexposure determines toxicity
16
Iron is an example of a
Compound
Alloy
Mixture
Element
17
Beauty and wellness professionals should study and have a thorough understanding of chemistry because?
every product in the beauty industry contains some type of chemical
it is unrelated to the safe operation of a salon or spa
clients often quiz beauty professionals on this important knowledge
chemistry experiments are often regular practice at salons and spas
18
The most basic form of chemical matter is a(n)...
Cell
Neutron
Element
Atom
19
What are the basic units of living matter?
Kidneys
Cells
Bones
Tissues
20
pH is the abbreviation of ________________.
potential hydrogen
pure hydrogen
possible hydrogen
product hydrogen
21
A ______ is capable of igniting and burning.
chemical
mutagen
carcinogen
combustible
22
All acids owe their chemical reactivity to____.
overexposure
alkalis
the hydrogen ion
oxygen
23
In the uniform order of the SDS, which of the following comes immediately after the first category of "Identification"?
Hazard Identification
Disposal Considerations
Toxicology Information
First-Aid Measures
24
The very first surfactants were _________.
motor oils
soaps
cooking oils
nail polish
25
When immiscible liquids are combined, they form
suspensions
miscible liquids
solutions
stable mixtures
26
Water and oil are immiscible
False
True
27
Hydrogen peroxide should never be mixed with bleach because _________.
it “discolors” more than lightens the hair
it dries out hair excessively
it creates a potentially deadly gas
they become unpredictable in their use
28
Miscible liquids can be mixed, while Immiscible liquids are not capable of being mixed into stable solutions.
True
False
29
During combustion of a substance, the production of heat and light accompanies the rapid oxidation.
True
False
30
Water is not a compound.
False
True
31
Most states and counties do not have regulations in place for the disposal of many of the chemicals used in salons.
True
False
32
why would it be so important that you insist that for every chemical used there is an SDS available?
Because it is the most cost-effective policy
Because most clients will insist on it
Because it is a requirement of OSHA
Because it enhances the image of the business
33
Which one is the solute?
Water
Spoon
Salt
Glass
34
Everything you can touch and everything you can see is matter EXCEPT
living and once-living bodies
light and electricity
chemicals and powders
liquids and gases
35
Also known as oxidizing agents; supplies the necessary oxygen gas to develop color molecules
Permanent haircolor
Hair Dye
Hair Bleach
Developers
36
A carcinogen is BEST described as a _________.
material capable of igniting or burning
material that is very easy to ignite
substance that is made of carbon
substance that causes cancer
37
Acids are numbers _-_ on the pH scale.
8-14
7-14
0-7
0-6
38
Acid-Alkali neutralization reactions ________ the total pH and form water and a salt.
balance
combine
39
An oxidizing agent that when mixed with oxidation hair color supplies the oxygen gas to develop the color molecules
Hydrogen peroxide developer
Toner
Permanent haircolor
Gradual haircolor
40
Neutrons are defined as the basic units of matter.
False
True
41
There are _________ accepted pictograms included in all SDSs.
16
9
3
6
42
Solutions are stable mixtures.
False
True
43
The Safety Data Sheet (SDS) replaced the _________.
Environmental Protection Agency (EPA)
Occupational Safety and Health Administration (OSHA)
Material Safety Data Sheet (MSDS)
National Institute of Health (NIH)
44
SDSs are designed for _____.
use only by managers
use in an emergency
use only by new employees
everyday use
