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ELEMENTS, COMPOUNDS, And MIXTURES
Test Description: Texas standard 6.5A differences between elements, compounds, and mixtures
Instructions: Answer all questions to get your test result.
1) What is a pure substance made of only one kind of atom?
A
compound
B
atom
C
mixture
D
element
2) What is a pure substance made by chemically combining two or more elements; represented by a chemical formula?
A
chemical formula
B
compound
C
mixture
D
element
3) what is a substance that is not mixed with any other substance
A
compound
B
pure substance
C
chemical formula
D
element
4) What is representation of the name of an element; written as a capital letter or a capital letter followed by a lowercase letter(s)?
A
chemical symbol
B
element
C
mixture
D
compound
5) What do you call two or substances combined together?
A
chemical symbol
B
compound
C
mixture
D
element
6) What is a representation of a compound in which the elements are represented by their symbols and subscripts represent the number of atoms of each element?
A
mixture
B
compound
C
Chemical formula
D
element
7) A mixture that can be easily separated by natural means is called what?
A
homogenous mixture
B
chemical mixture
C
heterogenous mixture
D
pure mixture
8) A mixture that can NOT be easily separated by natural means is called what?
A
chemical mixture
B
heterogenous mixture
C
pure mixture
D
homogenous mixture
9) Salt is considered to be?
A
an element
B
a chemical
C
a substance
D
a compound
10) saltwater is considered to be ?
A
a compound
B
a chemical
C
an element
D
a pure substance
*select an answer for all questions
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