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Chemistry Unit Test

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1.
1 point
A new product formed by the uniting of two or more elements is known as:
2.
1 point
When two or more atoms are joined together chemically, what is created?
3.
1 point
If a product has a pH of 8.9, it is considered:
4.
1 point
Temporary mixtures of two kinds of matter are:
5.
1 point
The head of a surfactant molecule is ______, meaning water-loving.
6.
1 point
A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound is known as:
7.
1 point
______ Organic compounds are substances containing carbon and evaporate very quickly and easily.
8.
1 point
When two or more elements combine chemically, they form a new substance called a:
9.
1 point
Redox is a contraction for:
10.
1 point
An alteration of the properties of a substance without the formation of a new substance is a:
11.
1 point
Substances that act as a bridge to allow oil and water to mix or emulsify are:
12.
1 point
When a substance is combined with oxygen, the substance is
13.
1 point
The separating of a substance into ions is known as
14.
1 point
If a substance falls below 7 it is considered
15.
1 point
There are about _____ naturally occurring elements, each with its own distinctive physical and chemical properties.
16.
1 point
In creating a solution, the liquid used to dissolve a substance is called the:
17.
1 point
What is the range of hair on the pH scale?
18.
1 point
A special type of oil used in nail polish dryers and as a skin protectant is:
19.
1 point
In organic chemistry, organic means clean, natural and safe.
20.
1 point
Liquids that mix easily are known as:
21.
1 point
Organic chemistry is the study of all substances containing
22.
1 point
Substances that cannot be reduced to simpler substances are called:
23.
1 point
What is the name of this Unit?
24.
1 point
The smallest particle of an element is the
25.
1 point
If a substance registers above 7 on the pH scale it is considered
26.
1 point
______ are substances used to neutralize acids or raise the pH of many hair products.
27.
1 point
A preparation made by dissolving a solid, liquid or gaseous substance in another substance is:
28.
1 point
A molecule is formed by joining two or more ______ chemically.
29.
1 point
Pure water with a pH of 7 is considered to be:
30.
1 point
When fermented to make wine, the sugar in grapes is converted into:
31.
1 point
The branch of chemistry which deals with products that do not contain carbon is called:
32.
1 point
What type of change occurs when ice melts and becomes water?
33.
1 point
What is the range of the pH scale?
34.
1 point
What is considered neutral on the pH scale?
35.
1 point
A permanent mixture of two or more substances that are united with the aid of a binder is
36.
1 point
A chemical reaction in which oxygen is subtracted from or hydrogen is added to a substance is called:
37.
1 point
Anything that occupies space, has physical and chemical properties, and exists in either a solid, liquid, or gas is known as
38.
1 point
The tail of a surfactant molecule is ______, meaning oil-loving.
39.
1 point
Another name for alkalis is:
40.
1 point
A combination of substances that are held together by physical rather than chemical ties is called a:
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