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