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Chapter 7- Basics of chemistry Flashcards | StudBud
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Chapter 7- Basics of chemistry
Chapter 7- Basics of chemistry
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Milady Exam review Chapter 7- Basics of chemistry
Flashcards
40 cards
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Questions
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Answers
1
What is an ion?
Atom or molecule that carries an electrical charge
Dust particle left over after ionization process
Spark discharged during the ionization process
Atom or molecule without an electrical charge
2
What is NOT true of atoms?
All matter is composed of atoms
All atoms are identical
They are small particles of elements
Atoms consist of smaller particles
3
What is true of oxygen?
The most abundant element on earth
There is no oxygen in the air
Least abundant element on earth
Should not be ingested because it is poisonous to humans
4
What is true of elements?
There are only 5 basic elements in the universe
Elements are the most complex form of matter
Elements are the simplest form of matter
The main elements are sunshine, clouds, rain and snow
5
What type of substance has a pH level of 7.0?
Acidic
Alkaline
Neutral
Toxic
6
What is the difference between water-in-oil (W/O) emulsions & oil-in-water (O/W) emulsions?
O/W are greasier
W/O emulsions are easily rinsed away with water
O/W are not easily rinsed with water
W/O are greasier
7
What is the term that refers to matter and it’s three physical forms (liquid, solid, gas)?
States of matter
Chemical properties
Appearances of matter
Physical properties
8
What are most skin care products?
Emulsions of oil and water
Suspensions of oil and water
Reductions of oil and water
Solutions of oil and water
9
What term refers to substances with a pH below 7.0?
Acids
Alkalis
Reductions
Solutions
10
What businesses primarily use oil-in-water emulsions?
Salons and spas
Fast-food restaurants
Bakeries
Auto repair shops
11
What is any substance that is dissolved by a solvent to form a solution?
Emulsion
Suspension
Solute
Matter
12
What is an ion with a negative charge?
Neutron
Cation
Molecule
Anion
13
What is air?
Common name for the chemical that makes the sky blue
Gaseous mixture that makes up the earth’s atmosphere
Shell of radiation surrounding earth
Water vapor that forms clouds
14
What is the study of substances that contain carbon?
Organic chemistry
Organic dating
Carbon dating
Carbon chemistry
15
What term means “water-loving”?
Hydrophobic
Hydro centric
Hydroactive
Hydrophilic
16
What has physical properties that we can see, smell, taste, and touch?
Electricity
Radiation
Matter
Energy
17
What element is found in all living things, whether they are plants or animals?
Helium
Carbon
Radon
Zinc
18
What is United with the aid of an emulsifier to create an emulsion?
A surfactant and a liquid
2 or more miscible substances
2 or more immiscible substances
A reduction and a solution
19
What type of neutralization reaction forms water and salt?
Acid-alkali
Reduction-compound
Solution-compound
Atom-alkali
20
What is true of water?
Most abundant substance on earth
Relatively scarce substance
The human body is made up entirely of water
Water comprises a very small portion of the human body
21
What are the two branches of chemistry?
Anagen in catagen
Artificial and natural
Organic and inorganic
Alkaline and acidic
22
What is true of liquid?
Matter with fixed volume and definite shape
Matter with no fixed volume but definite shape
Matter with no fixed volume and no definite shape
Matter with fixed volume but no definite shape
23
What term means “oil-loving”?
Lipophobic
Lipocentric
Lipophilic
Lipoactive
24
What is reduction?
Loss of oxygen or the addition of hydrogen
Loss of both oxygen and hydrogen
Addition of both oxygen and hydrogen
Addition of oxygen or the loss of hydrogen
25
How much air is made up of nitrogen?
Four fifths
Three eighths
Two thirds
One quarter
26
What is true of a moisturizer?
It is an oil in-water-emulsion
It is a water-in-oil emulsion
It is an oil-in-reduction
It is a water-in-oil reduction
27
What is an atom with a positive electrical charge?
Cation
Molecule
Anion
Neuron
28
What is a solution?
Unstable mixture of the largest particles
Unstable mixture of an emulsion and a reduction
Uniform mixture of 2 or more mutually immiscible substances
Uniform mixture of 2 or more mutually miscible substances
29
What do antioxidants prevent by neutralizing free radicals?
Oxygenation
Ionization
Radicalization
Oxidation
30
What is true of each of the approximately 90 natural occurring elements?
Each has its own distinctive physical and chemical property
All share the same physical and chemical properties
Chemical properties vary, have the same physical property
Physical properties vary, same chemical properties
31
What is the science that deals with the composition, structure, and properties of mater?
Ergonomics
Biology
Physiology
Chemistry
32
What does the term miscible mean?
Incapable of being mixed
Capable of being ionized
Capable of being mixed
Incapable of being ionized
33
What are Surfactants?
Stable mixtures of two or more immiscible substances
Unstable mixtures of two or more immiscible substances
Chemical compounds made from a reduction and a suspension
Chemical compounds made from a reduction and a solution
34
How much of the earths surface, approximately, is water?
100%
25%
75%
10%
35
What is the natural pH of the skin?
3.5
7.0
7.5
5.5
36
What causes oxidation?
Addition of both oxygen and hydrogen
Addition of oxygen or Loss of hydrogen
Loss of both oxygen and hydrogen
Addition of hydrogen or loss of oxygen
37
What is light a form of?
Matter
Matter
Energy
Liquid
38
What are substances with a pH above 7.0?
Solutions
Alkalis
Acids
Reductions
39
What element is absent from the compounds studied and in organic chemistry?
Nitrogen
Helium
Carbon
Oxygen
40
What term refers to molecules that contain two or more atoms of the same element?
Chemical molecules
Atomic molecules
Elemental molecules
Radiological molecules
