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Elements, Compounds, And Mixtures
Test Description: Classifying matter
Instructions: Answer all questions to get your test result.
1) A pure substance made of two or more elements that are chemically combined is called a:
A
solution
B
suspension
C
mixture
D
compound
2) How is a mixture different from a compound?
A
Mixtures have two or more components.
B
Mixtures are commonly found in nature.
C
Solids, liquids, and gases can form mixtures.
D
Each substance in a mixture keeps most of its characteristic properties.
3) Which of the following would not increase the speed at which a solid (i.e., Nestle Quik) dissolves in water?
A
adding more of the solid
B
crushing the solid
C
stirring or shaking the mixture
D
heating the mixture
4) Metals, nonmetals, and metalloids are groups of:
A
compounds
B
elements
C
substances
D
alloys
5) Compounds are not random combinations of elements. They have a specific:
A
mass ratio
B
concentration
C
density
D
chemical composition
6) Which of the following substances can be separated into simpler substances (elements) only by chemical means?
A
gold
B
salt water
C
water
D
sodium
7) A(n) ____________________ can be separated by filtation.
A
Mixture
B
Element
C
Molecule
D
Compound
8) Which of the following are considered pure substances?
A
elements
B
both elements and compounds
C
neither elements nor compounds
D
compounds
9) Which of the following would NOT be considered a mixture?
A
River Water
B
Gold
C
Diet Coke
D
Fresh Orange Juice
10) Matter is anything that has _________ and takes up ________.
A
mass, space
B
mixtureweight, energy
C
color, odor
D
shape, atoms
11) The smallest unit of matter in this list is ________.
A
an atom
B
a gas
C
a molecule
D
a cell
12) This is made up of two different classes of substances; solutes (dry stuff) and solvents (liquid stuff):
A
Compound
B
Element
C
Mixture
D
Molecule
*select an answer for all questions
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