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Chemistry F6 Flashcards | StudBud
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Chemistry F6
Chemistry F6
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Questions
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Answers
1
Water is a universal solute.
True
False
2
Energy is not matter.
False
True
3
How many naturally occurring elements are known to science today?
81
118
98
108
4
SDS - Safety data sheets are for used in case of emergency.
True
False
5
How many excepted pictograms are included in all SDS?
6
3
16
9
6
When immiscible liquids are combined they form ______.
Miscible liquids
Stable mixtures
Suspensions
Solutions
7
Which is true of all liquids?
They are miscible
They are either miscible and immiscible
They are immiscible
They are mixable
8
Endothermic means….
Junk in the trunk
EN DO DRYER!!!!
I don’t need heat
Endo dryer
9
When mixing chemicals one should ____________.
Avoid well ventilated rooms
Never put in a spray bottle
use a measuring device like a measuring cup or a spoon
Add water to the chemical not the other way around
10
All matter in the known universe is made up of elements.
True
False
11
The head of a surfactant molecule is hydrophilic which means attracting water or water loving.
True
False
12
A pH below seven indicates an acidic solution.
True
False
13
What can help a mixture from separating?
Solvent
Salute
Suspension
An emulsifier
14
Drops of eucalyptus oil in water. The eucalyptus is-
Solvent
Solutions
Immiscible
Solute
15
Which of the following is true products that are incompatible?
They should never be used on clients
They can safely be mixed with proper precautions
They are always considered dangerous
No two should be stored next to each other
16
The pH scale is used to measure _________.
Levels of carbon dioxide
Levels of oxygen
Acidity and alkalinity
Over exposure and under exposure
17
Soaps were the first surfactants
True
False
18
What does an oxidizing agent do?
Absorb oxygen
Release oxygen
Increase oxygen
Nullifies oxygen
19
Everything is made out of matter is a chemical.
False
True
20
Happy opens a business; chemistry will help because
Experimentation is essential
Every product she uses will contain some type of chemical
Beauty pros are part time chemist
He must be great at chemistry
21
Surfactants are substances that allow oil and water to mix or emulsify.
True
False
22
If you left freezer open and ice melted this would be
Neutralization
Exothermic reaction
Like ionization
Endothermic reaction
23
Light and electricity are forms of energy.
True
False
24
Matter is…..
Made of light and electricity
Any substance that occupies space and has mass
Basic unit of matter
The simplest form of chemical matter
25
There is no such thing as a chemical free product.
True
False
26
Which of the following is true when salt is dissolved into water?
Salt is the solute
Salt and water are both solvents
Water is the solute
Salt and water are both solutes
27
There is such a thing as a chemical free product.
True
False
28
Solid ice undergoes a physical change when it melts into water.
True
False
29
For what reason would an acid most likely be used?
How to soften calloused skin
To exfoliate the skin
To raise the pH of products
To swell the hair
30
What does a reducing agent do?
Add hydrogen to a chemical compound
Adds oxygen through a chemical compound
Subtract hydrogen from a chemical compound
Subtract nitrogen from the chemical compound
31
The number of protons determine the element.
False
True
32
________ are the basic unit of matter.
Atoms
Electrons
Protons
Neutrons
33
Which of the following is true of solutions?
They are surfactants
They are stable mixtures
They are usually a solid color
They are in miscible
34
Skin has a pH of
9
4
5
12
35
Employees experience rashes and sneezing after months of using a product, what happened?
Ionization
The overexposure principle
Neutralization
The pH principal
36
Which of the following is the simplest form of chemical matter?
A chemical
A gas
A liquid
An element
37
Safety data sheets (SDS)replaced material safety data sheets (MSDS).
False
True
