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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 are commonly found in nature.
B
Each substance in a mixture keeps most of its characteristic properties.
C
Mixtures have two or more components.
D
Solids, liquids, and gases can form mixtures.
3) Which of the following would not increase the speed at which a solid (i.e., Nestle Quik) dissolves in water?
A
crushing the solid
B
heating the mixture
C
stirring or shaking the mixture
D
adding more of the solid
4) Metals, nonmetals, and metalloids are groups of:
A
compounds
B
alloys
C
elements
D
substances
5) Compounds are not random combinations of elements. They have a specific:
A
density
B
concentration
C
mass ratio
D
chemical composition
6) Which of the following substances can be separated into simpler substances (elements) only by chemical means?
A
sodium
B
salt water
C
water
D
gold
7) A(n) ____________________ can be separated by filtation.
A
Compound
B
Molecule
C
Element
D
Mixture
8) Which of the following are considered pure substances?
A
elements
B
compounds
C
both elements and compounds
D
neither elements nor compounds
9) Which of the following would NOT be considered a mixture?
A
Gold
B
River Water
C
Fresh Orange Juice
D
Diet Coke
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 cell
C
a gas
D
a molecule
12) This is made up of two different classes of substances; solutes (dry stuff) and solvents (liquid stuff):
A
Mixture
B
Element
C
Molecule
D
Compound
*select an answer for all questions
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