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Elements, Compounds, & Mixtures
Test Description: 8th Physical Science Chapter 4 Review
Instructions: Answer all questions to get your test result.
1) Which of the following will NOT break down compounds?
A
filtering
B
electric current
C
heat
D
a chemical change
2) How do elements join to form compounds?
A
in specific ratios
B
however the scientists wants to do it
C
in a ratio of 2:3
D
randomly
3) If a spoonful of salt is mixed in a glass of water, what is the water called?
A
Solution
B
Solvent
C
Solute
D
Element
4) What is formed when particles of two or more substances are distributed evenly among each other?
A
Element
B
Suspension
C
Compound
D
Solution
5) The physical properties of compounds do NOT include
A
color
B
density
C
reaction to light
D
melting point
6) An element's ability to react with acid is an example of a
A
chemical property
B
melting point
C
pure substance
D
physical property
7) How could a sugar cube be dissolved more quickly in water?
A
Add more water
B
Let the cube sit in the water
C
Cool the water
D
Crush the sugar cube
8) Boiling point, melting point, and density are some of an element's
A
physical properties
B
pure properties
C
nonreactive properties
D
chemical properties
9) A property of an element that does not depend on the amount of the element is called a
A
characteristic property
B
finite property
C
unique property
D
electromagnetic property
10) What is a pure substance made of two or more elements that are chemically combined?
A
solution
B
element
C
compound
D
mixture
*select an answer for all questions
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