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Chemistry
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Chemistry
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29 cards
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Questions
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Answers
1
Liquids that mix easily are known as _____?
compatible
immiscible
miscible
incompatible
2
Cold creams and skin creams are examples of?
solutions of oil O/W or W/O
reductions of O/W or W/O
emulsions of O/W or W/O
suspensions of O/W or W/O
3
What is reduction?
additon of oxygen and the loss of hydrogen
loss of oxygen or the addition of hydrogen
loss of both oxygen and hydrogen
addition of both oxygen and hydrogen
4
What is an ion with a positive charge?
anion
molecule
cation
neutron
5
A particular type of oil used in nail polish dryers and as a skin protectant?
alcohol
glycerine
ammonia
silicone
6
When fermented to make wine, the sugar in grapes is converted into?
distilled water
ethyl alcohol
soft water
cetyl alcohol
7
The separating of a substance into ions is known as?
cation
ionization
deionization
decomposition
8
Organic chemistry deals with matter that
does not
contain carbon.
False
True
9
An unstable physical mixture of two or more substances that are united with the aid of an emulsifier is called?
a solution
an emulsion
a suspension
an ointment
10
A molecule is formed by joining two or more ____
chemically.
neurons
atoms
protons
anions
11
There are how many naturally occurring elements?
60
70
98
80
12
A combination of substances that are held together by physical ties is called?
synthesis
compound
mixture
solvent
13
What is an ion?
atom or molecule that does not have an electrical charge
a molecule that you can see
atom or molecule that carries an electrical charge
an element on the periodic table
14
What type of change occurs when ice melts and becomes water?
Chemical
Physical
Reactive
Soluble
15
What term refers to substances with a pH below 7
solutes
acids
alkalis
bases
16
These are substances used to neutralize acids or raise the pH of many hair products.
alkanolamines
silicones
ammonia
alcohols
17
What is the natural pH of the skin?
3.5-8.5
4.5 -5.5
5 - 7.5
7 - 8
18
This changes the form of a substance without forming a new substance.
compound
mixture
physical change
chemical change
19
This term is also known as "water-loving."
hydrophilic
hydrocentric
hydrophobic
hydroactive
20
What are substances with a pH above a 7
solutions
acids
reductions
alkalis
21
In creating a solution, the liquid used to dissolve a substance is called the
suspension
emulsion
solute
solvent
22
Pure water with a pH of 7 is considered to be?
alkaline
neutral
acid
mineral
23
What is united with the aid of an emulsifier to create an emulsion?
a reduction and a solution
two or more miscible substances
two or more immiscible substances
a surfactant and a liquid
24
Temporary mixtures of two kinds of matter are?
emulsions
mixtures
solutions
suspensions
25
If a product has a pH of 8.9, it is considered?
alkaline
acidic
balanced
neutral
26
Organic Chemistry is the study of all substances containing?
nitrogen
sulfur
carbon
hydrogen
27
What has physical properties that we can see, touch, smell and taste
energy
matter
electricity
radiation
28
What causes oxidation?
loss of both oxygen and hydrogen
addition of hydrogen or the loss of oxygen
addition of both oxygen and hydrogen
addition of oxygen or the loss of hydrogen
29
What is a solution?
uniform mixture oftwo or more mutually immiscible substances
the simplest form of chemical matter
unstable mixture of the largest particles
uniform mixture of two or more mutually miscible substances
