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Chemical And Physical Changes And Properties; Elements, Compounds, And Mixtures
Test Description: Review Chemical and Physical Changes and Properties, Elements, compounds, and mixtures
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of a chemical change?
A
rusting
B
freezing
C
dissolving
D
melting
2) Which of the following is an example of a physical change?
A
nuclear fission
B
evaporation
C
rusting
D
combustion
3) An example of a physical property of matter would be...
A
mass
B
pH
C
flammability
D
reactivity
4) An example of a chemical property of matter would be...
A
length
B
color
C
density
D
pH
5) Which of the following is an example of a mixture?
A
Pure gold
B
Air
C
Copper wire
D
Water
6) Which of the following is a pure substance?
A
Salt water
B
Fruit salad
C
Lemonade
D
NaCl
7) A mixture that looks like it is all one substance is called a(n)
A
solution
B
acid
C
compound
D
element
8) _________ are formed when two or more elements combine together to make a pure substance.
A
Solutions
B
Compounds
C
Mixtures
D
Combinations
9) A(n) _________ is the smallest unit of an element that still retains the properties of that element.
A
gram
B
atom
C
molecule
D
ion
10) All matter on earth is made up of combinations of ~100 _________.
A
mixtures
B
atoms
C
compounds
D
elements
*select an answer for all questions
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