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Chapter 10: Basics of Chemistry Flashcards | StudBud
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Chapter 10: Basics of Chemistry
Chapter 10: Basics of Chemistry
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#Chapter 10 #Nail_Technology #Basic of Chemistry
Flashcards
45 cards
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Questions
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Answers
1
Which of the following is NOT matter?
Soil
Minerals
Light
Air
2
When water freezes and becomes ice, it undergoes:
An exothermic reaction
Osmosis
A chemical change
A physical change
3
What is an anion?
An ion with both a positive and negative charge
An ion with a negative charge
An ion with a positive charge
An ion without a charge
4
Lye (Sodium Hydroxide) is a _____ used in drain cleaners and callous softeners.
Mild acid
Very strong acid
Very strong alkali
Mild alkali
5
All ____ exist(s) as a solid, liquid, or gas.
Matter
Light
Atoms
Energy
6
Which of the following is an example of a chemical-free product?
Water
None of these answers are correct
Bleach
Nail Polish Remover
7
In order to be considered organic, a substance must contain:
Hydrogen
Nitrogen
Oxygen
Carbon
8
A ____ is a stable uniform blend of two or more substances.
Solution
Mixture
Suspension
Emulsion
9
What is the pH of pure water?
7.0
0.0
1.0
1.0
10
Volatile organic compounds:
Evaporate very quickly
Both of these answers are correct
Neither of these answers is correct
Contain Carbon.
11
Glycerin is:
Bitter
Dark in color
All of these answers are correct.
Oily
12
What percentage of the human body is composed of chemicals?
100%
85%
55%
30%
13
Any substance that occupies space and has mass is considered:
Matter
Energy
An atom
An element.
14
Solutions:
Separate on standing
Are usually opaque
Contain small particles that are invisible to the naked eye
All of these answers are correct
15
Silicones
Cause comedones.
Are used in nail polish removers
Are less greasy than other oils.
make the skin feel grainy
16
The structural units that make up the elements are called
Molecules
Atoms
Particles
Cells
17
Unstable mixture of two or more substances that will not stay blended without a binder
Emulsion
Solution
Suspension
Mixture
18
The head of a surfactant molecule is:
Hydrophilic
Lipophilic.
Carbon-Loving.
Oxygen-loving
19
Polymerization is:
An example of a chemical change.
All of these answers are correct
An example of an exothermic reaction
The hardening of an artificial nail product.
20
What is the chemical formula for ozone?
O2
H2SO4
O3
H2O
21
Which pH indicates an alkaline solution?
7.5
0.0
5.9
1.0
22
A pH of 5 is ____ than a pH of 6.
2 times more alkaline
10 times more acidic
10 times more alkaline
2 times more acidic
23
How many atoms are in a molecule?
Five or More
One
Two or more
None
24
Chemistry deals with the ____ of matter and how matter changes under different conditions
Structures
Composition
Properties
All of these answers are correct.
25
___, droplets of water are surrounded by surfactants with their hydrophilic heads pointing up
Both of these answers are correct
Oil-in-water emulsion
Neither of these answers is correct
Water-in-oil emulsion
26
Which of the following is an inorganic substance?
Pesticide
Synthetic fabric
Metal
Gasoline
27
Alkalis turn litmus paper from:
Yellow to green
Blue to red
Green to yellow
Red to Blue
28
Which of the following is made from a combination of petrolatum, oil, and wax?
Styling waxes
All of these answers are correct
Ointments
Pastes
29
Which of the following is a physical property?
All of these answers are correct.
Gloss
Size
Hardness
30
Emulsions usually separate :
very slowly over time
immediately
within a few hours
Within a few minutes
31
H stands for which element?
Helium
Silver
Hafnium
Hydrogen
32
Pure water:
Does not have a pH.
Is more alkaline than acidic
Is equally alkaline and acidic
Is more acidic than alkaline.
33
If two liquids are incapable of being mixed into a stable solution, they are considered:
Soluble
Lipophile
Immiscible
Miscible
34
Which of the following causes an atom to split in two?
Metamorphosis
Osmosis
Mitosis
Ionization
35
What causes the physical form of matter to change?
The temperature of matter
The age of matter
The shape of matter
The size of matter
36
What is the universal solvent?
Water
Bleach
Oxygen
Alcohol
37
All organic substances are:
None of these answers are correct.
Healthy
Natural.
Safe
38
Gases have:
A definite shape and an indefinite volume
An indefinite shape and a definite volume.
A definite shape and volume
An indefinite shape and volume.
39
The simplest form of chemical matter is called a(n)
Atom.
Cell.
Element.
Ion
40
Suspensions:
Stable mixtures of dissolved particles floating in a liquid.
Are usually transparent.
Contain smaller particles than solutions.
Contain less miscible particles than solutions
41
Only products that contain ____ can have a pH
Water
Carbon
Silicon
Alcohol
42
_____ can only be determined by a chemical reaction and a chemical change in the substance
States of matter
Physical properties.
Chemical properties
Atomic properties.
43
When you combine atoms you get?
Cells
Molecules
Particles
Nuclei
44
A _____ is a chemical combination of matter in definite proportions.
Physical mixture
Pure substance
Solution
Suspension
45
How many naturally occurring elements are there?
90
43
25
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