What accompanies the rapid oxidation of a substance during combustion?

the production of heat and light

What does a reducing agent do?

adds hydrogen to a chemical compound

What did the Safety Data Sheet (SDS) replace?

the Material Safety Data Sheet (MSDS)

Which of the following is TRUE of all liquids?

they are either miscible or immiscible

The effects of cosmetics and beauty products are based on which of the following?

how the body reacts to chemicals

Which of the following is TRUE today of the disposal of many of the chemicals used in salons, spas, and barbershops?

most states and counties do not have regulations in place

When mixing chemicals, one should ________________.

use a measuring device, such as a measuring cup or spoon

Why should beauty professionals study and have a thorough understanding of chemistry?

because every product used in beauty and wellness contains some chemicals

a substance that dissolves a solute and makes a solution

a substance that is dissolved in a solution

Which of the following is TRUE of creams, lotions, masks and makeup?

they contain chemicals whether they come from natural sources or lab made

Which of the following is TRUE of products that are incompatible?

no two should be stored next to each other

Why should ammonia never be mixed with bleach?

it creates a potentially deadly gas

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Duplicate of 2020 Chemistry (cont)

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Questions 30

Answers

1
How many elements are known to science today?
18
81
108
118
2
pH is an abbreviation of:
probable H2O
productively high
pure hydrochloric acid
potential hydrogen
3
What does an oxidizing agent do?
absorbs oxygen
releases oxygen
nullifies oxygen
increases oxygen
4
What accompanies the rapid oxidation of a substance during combustion?
an ionization of the substance
the production of heat and light
an endothermic reaction
neutralization
5
What does a reducing agent do?
subtracts hydrogen from a chemical compound
subtracts nitrogen from a chemical compound
adds oxygen to a chemical compound
adds hydrogen to a chemical compound
6
Which of the following is the simplest form of chemical matter?
a liquid
a chemical
a gas
an element
7
The basic units of matter:
atoms
neutrons
protons
electrons
8
Acid-alkali neutralization reactions occur when acid is mixed with alkali in equal proportions, forming water and _____.
a salt
nitrogen
a sulfur
carbon dioxide
9
What did the Safety Data Sheet (SDS) replace?
the Material Safety Data Sheet (MSDS)
the National Institutes of Health (NIH)
the Environmental Protection Agency (EPA)
the Occupational Safety and Health Administration (OSHA)
10
Which of the following is TRUE of all liquids?
they are immiscible
they are either miscible or immiscible
they are miscible
they are both miscible and immiscible
11
For which of the following purposes would acids most likely be used?
to swell the hair
to soften calloused skin
to exfoliate the skin
to raise the pH of products
12
The effects of cosmetics and beauty products are based on which of the following?
how the body reacts to chemicals
how pleased the beauty professional is with the results
how friends and family members react to a new look
how favorably the new styles compare with the old
13
The pH scale is used to measure __________ of substances.
levels of carbon dioxide
acidity and alkalinity
levels of oxygen
overexposure and underexposure
14
Of all the elements known to science today, how many occur naturally on earth?
19
98
89
18
15
Everything you can touch and everything you can see is matter EXCEPT:
light and electricity
living and once-living bodies
liquids and gases
chemicals and powders
16
Which of the following is TRUE today of the disposal of many of the chemicals used in salons, spas, and barbershops?
there are no regulations in place anywhere across the United States
most states and counties have regulations in place
there are strict and universal regulations in place across the US
most states and counties do not have regulations in place
17
When mixing chemicals, one should ________________.
add the water to the chemical, not the other way around
use a measuring device, such as a measuring cup or spoon
avoid rooms or areas that are well ventilated
never use secondary containers, such as spray bottles
18
When immiscible liquids are combined, they form:
solutions
stable mixtures
suspensions
miscible liquids
19
Why should beauty professionals study and have a thorough understanding of chemistry?
because every product used in beauty and wellness contains some chemicals
because clients often quiz beauty professionals on this important knowledge
because it is unrelated to the safe operation of a salon, spa or barbershop
because chemistry experiments are regular practice at salons and spas
20
What is a solvent?
a substance that dissolves a solute and makes a solution
a substance dissolved into a solution
a stable physical mixture of two or more substances
a liquid not capable of being mixed to form a stable solution
21
Which of the following were the first surfactants?
soaps
nail polishes
motor oils
cooking oils
22
Any substance that occupies space and has weight is:
a beauty product
potentially dangerous
a chemical
matter
23
What is a solute?
a stable physical mixture of two or more substances
a substance that is dissolved in a solution
a substance that dissolves a solvent and makes a solution
a liquid not capable of being mixed to form a stable solution
24
Which of the following is TRUE of creams, lotions, masks and makeup?
they never contain chemicals
they only contain chemicals if they come from ingredients made in a lab
they only contain chemicals if they are not made from natural sources
they contain chemicals whether they come from natural sources or lab made
25
The overexposure principle is used to describe how overexposure determines _______________.
immunity
toxicity
safety
tolerance
26
Which of the following is TRUE of products that are incompatible?
they should never be used on clients
they can be safely mixed with proper precautions
they are always considered dangerous
no two should be stored next to each other
27
All acids owe their chemical reactivity to __________.
alkalis
oxygen
overexposure
the hydrogen ion
28
Which of the following is an example of a compound molecule?
common table salt
the oxygen we breathe
the ozone layer
pure nitrogen
29
Why should ammonia never be mixed with bleach?
they become unpredictable in their use
it "discolors" more than lightens the hair
it creates a potentially deadly gas
it dries out skin excessively
30
Which of the following is TRUE of solutions?
they are surfactants
they are usually a solid color
they are stable mixtures
they are immiscible

Duplicate of 2020 Chemistry (cont) Flashcards | StudBud