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Duplicate of Basics of Chemistry Flashcards | StudBud
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Duplicate of Basics of Chemistry
Duplicate of Basics of Chemistry
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1
Anything that occupies space, has physical and chemical properties, and exists in either a solid, liquid or gas is...
matter
compounds
elements
organic substance
2
When two or more atoms are joined together chemically, what is created?
a neuron
an atom
a molecule
an electron
3
A molecule is formed by joining two or more ______ chemically
protons
atoms
anions
neurons
4
Pure water with pH of 7 is considered to be...
neutral
mineral
alkaline
acid
5
A combination of substances that are held together by physical rather than chemical ties is called a ...
mixture
compound
synthesis
solvent
6
Substances that act as abridge to allow oil and water to mix or emulsify are ...
miscibles
surfactants
compounds
solutions
7
A special type of oil used in nail polish dryers and as a skin protectant
ammonia
silicone
glycerine
alcohol
8
An alteration of the properties of a substance without the formation of a new substance is...
chemical change
compound
physical change
mixture
9
In creating a solution, the liquid used to dissolve a substance is called the...
suspension
solute
emulsion
solvent
10
_____ are substances used to neutralize acids or raise the pH of many hair products
silicones
alcohols
ammonia
alkanolamines
11
When fermented to make wine, the sugar in grapes is converted into...
cetyl alcohol
soft water
distilled water
ethyl alcohol
12
There are about ____ naturally occurring elements, each with its own distinctive physical and chemical properties
90
60
70
80
13
The tail of a surfactant molecule is ______, meaning
oil-loving
hydrophilic
lipophilic
oilophilic
aquaphilic
14
A preparation made by dissolving a solid, liquid, or gaseous substance in another substance is...
a suspension
a solution
an emulsion
an ointment
15
If a product has a pH of 8.9, it is considered ...
alkaline
balanced
acid
neutral
16
Temporary mixtures of two kinds of matter are...
solutions
mixtures
suspensions
emulsions
17
The branch of chemistry that deals with products that do not contain carbon is called...
inorganic chemistry
molecular chemistry
organic chemistry
atomic chemistry
18
A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound is known as...
a reducing agent
an oxidizing agent
a reaction agent
a hydrogen agent
19
Redox is a contraction for...
reaction-oxidation
oxidation-reduction
reduction-oxidation
organic reaction
20
A permanent mixture of two or more substances that are united with the aid of a binder is...
an ointment
an emulsion
a suspension
a solution
21
______ organic compounds are substances containing carbon that evaporate very quickly and easily.
Liquescent
Weighty
Volatile
Resolute
22
The smallest particle of an element is the ...
neuron
proton
electron
atom
23
Another name for alkalis is...
bases
foundations
metals
nonmetals
24
Organic chemistry is the study of all substances containing...
nitrogen
hydrogen
carbon
sulfur
25
The separating of a substance into ions is known as...
cation
decomposition
ionization
deionization
26
When two or more elements combine chemically, they form a new substance called a...
mixture
suspension
solution
compound
27
A chemical reaction in which oxygen is subtracted from or hydrogen is added to a substance is called...
reduction reaction
organic chemistry
chemical change
physical change
28
When a substance is combined with oxygen, the substance is...
oxidized
reduced
subtracted
suspended
29
The formation of a new product by the uniting of two or more elements is known as...
an emulsion
a compound
a synthetic
a solution
30
Substances that cannot be reduced to simpler substances are called...
gases
bases
solutes
elements
31
Liquids that mix easily are known as...
compatible
incompatible
miscible
immiscible
32
The head of a surfactant molecule is ____, meaning
water-loving
.
lipophilic
oilophilic
aquaphilic
hydrophilic
33
What type of change occurs when ice melts and becomes water?
physical
soluble
reactive
chemical