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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
heat
C
electric current
D
a chemical change
2) How do elements join to form compounds?
A
however the scientists wants to do it
B
randomly
C
in a ratio of 2:3
D
in specific ratios
3) If a spoonful of salt is mixed in a glass of water, what is the water called?
A
Solvent
B
Solution
C
Element
D
Solute
4) What is formed when particles of two or more substances are distributed evenly among each other?
A
Solution
B
Compound
C
Element
D
Suspension
5) The physical properties of compounds do NOT include
A
density
B
melting point
C
color
D
reaction to light
6) An element's ability to react with acid is an example of a
A
pure substance
B
melting point
C
chemical property
D
physical property
7) How could a sugar cube be dissolved more quickly in water?
A
Crush the sugar cube
B
Cool the water
C
Add more water
D
Let the cube sit in the water
8) Boiling point, melting point, and density are some of an element's
A
pure properties
B
nonreactive properties
C
chemical properties
D
physical 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
element
B
mixture
C
solution
D
compound
*select an answer for all questions
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