Which of the following is TRUE of all liquids?

They are either miscible or immiscible.

What does a reducing agent do?

adds hydrogen to a chemical compound

Guidelines for properly storing chemicals include all EXCEPT which of the following?

Never dispose of chemicals in their original containers.

Why should ammonia never be mixed with bleach?

It creates a potentially deadly gas.

Why should beauty professionals study and understand chemistry?

Every product used in beauty & wellness contains some type of chemistry

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

No two should be stored next to each other.

a substance that dissolves a solute and makes a solution

a substance that is dissolved in a solution

When mixing chemicals, one should?

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

What did the Safety Data Sheet (SDS) replace?

the Material Safety Data Sheet (MSDS)

Which of the following is TRUE when salt is dissolved into water?

Salt is the solute and water is the solvent.

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Chemistry & Chemical Safety (NEW) 2.0

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Questions 30

Answers

1
Which of the following is TRUE of all liquids?
They are immiscible.
They are both miscible and immiscible.
They are miscible.
They are either miscible or immiscible.
2
Of all the elements known to science today, how many occur naturally on Earth?
98
89
18
19
3
pH is an abbreviation of?
productively high
potential hydrogen
probable H2O
pure hydrochloric acid
4
An SDS is formatted into how many categories?
10
12
16
8
5
Creams and lotions contain chemicals that come from natural sources or from ingredients manufactured in laboratory
False
True
6
What does an oxidizing agent do?
absorbs oxygen
releases oxygen
nullifies oxygen
increases oxygen
7
What does a reducing agent do?
subtracts nitrogen from a chemical compound
adds oxygen to a chemical compound
adds hydrogen to a chemical compound
subtracts hydrogen from a chemical compound
8
If you were to leave the freezer open all night, all of the ice will melt. This is a result of?
an exothermic reaction
neutralization
ionization
an endothermic reaction
9
Guidelines for properly storing chemicals include all EXCEPT which of the following?
Never haphazardly combine two chemicals.
Never allow chemicals to sit out.
Never dispose of chemicals in their original containers.
Always lock up chemicals when not in use.
10
Why should ammonia never be mixed with bleach?
They become unpredictable in their use.
It "discolors" more than lightens the hair.
It dries out skin excessively.
It creates a potentially deadly gas.
11
Any substance that occupies space and has weight is?
a chemical
matter
a beauty product
potentially dangerous
12
For which of the following purposes would acids most likely be used?
to exfoliate the skin
to soften calloused skin
to swell the hair
to raise the pH of products
13
Which of the following were the first surfactants?
motor oils
soaps
nail polishes
cooking oils
14
Why should beauty professionals study and understand chemistry?
It is unrelated to the safe operation of a salon.
Chemistry experiments are often regular in salons
Every product used in beauty & wellness contains some type of chemistry
Clients often quiz beauty professional.
15
Which of the following is TRUE of products that are incompatible?
They are always considered dangerous.
No two should be stored next to each other.
They can be safely mixed with proper precautions.
They should never be used on clients.
16
How many accepted pictograms are included in all SDS?
6
16
9
3
17
When immiscible liquids are combined, they form?
suspensions
miscible liquids
solutions
stable mixtures
18
What is a solvent?
a substance that dissolves a solute and makes a solution
a liquid not capable of being mixed to form a stable solution
a stable physical mixture of two or more substances
a substance dissolved into a solution
19
What is a solute?
a stable physical mixture of two or more substances
a substance that dissolves a solvent and makes a solution
a liquid not capable of being mixed to form a stable solution
a substance that is dissolved in a solution
20
When mixing chemicals, one should?
avoid rooms or areas that are well ventilated
never use secondary containers, such as spray bottles
add the water to the chemical, not the other way around
use a measuring device, such as a measuring cup or spoon
21
Which of the following is an example of a chemical change?
liquid nail polish hardening
water evaporating into the air
exposed metal rusting
ice melting to become water
22
What did the Safety Data Sheet (SDS) replace?
the Environmental Protection Agency (EPA)
the Material Safety Data Sheet (MSDS)
the National Institutes of Health (NIH)
the Occupational Safety and Health Administration (OSHA)
23
Which of the following is neutral to your skin?
a pH of 0
a pH of 5
a pH of 7
a pH of 14
24
Which of the following BEST describes a carcinogen?
a substance made of carbon
a material that is very easy to ignite
a substance that causes cancer
a material capable of igniting or burning
25
All acids owe their chemical reactivity to?
alkalis
overexposure
oxygen
the hydrogen ion
26
How many elements are known to science today?
108
18
81
118
27
Which of the following is an example of a compound molecule?
pure nitrogen
the ozone layer
the oxygen we breathe
common table salt
28
When mixing chemicals, you should avoid all EXCEPT which of the following?
misreading chemical labels
adding water to the chemicals
well-ventilated areas
the use of uncertain chemicals
29
Which of the following is the simplest form of chemical matter?
an element
a chemical
a liquid
a gas
30
Which of the following is TRUE when salt is dissolved into water?
Water is the solute and salt is the solvent.
Salt and water are both solutes.
Salt is the solute and water is the solvent.
Salt and water are both solvents.

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