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