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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
atom
B
element
C
compound
D
mixture
2) What is a pure substance made by chemically combining two or more elements; represented by a chemical formula?
A
chemical formula
B
mixture
C
compound
D
element
3) what is a substance that is not mixed with any other substance
A
element
B
pure substance
C
compound
D
chemical formula
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
element
B
compound
C
chemical symbol
D
mixture
5) What do you call two or substances combined together?
A
mixture
B
compound
C
element
D
chemical symbol
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
Chemical formula
B
element
C
compound
D
mixture
7) A mixture that can be easily separated by natural means is called what?
A
heterogenous mixture
B
homogenous mixture
C
pure mixture
D
chemical mixture
8) A mixture that can NOT be easily separated by natural means is called what?
A
homogenous mixture
B
heterogenous mixture
C
chemical mixture
D
pure mixture
9) Salt is considered to be?
A
a chemical
B
a compound
C
a substance
D
an element
10) saltwater is considered to be ?
A
a compound
B
a pure substance
C
a chemical
D
an element
*select an answer for all questions
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