Question 1
Which substance is a mixture?
A
air
B
graphite
C
oxygen
D
water
Question 2
The diagrams represent some elements, compounds and mixtures.
Which row describes the numbered substances?
1
2
3
4
element
mixture of compounds
compound
mixture of elements
compound
mixture of compounds
element
mixture of elements
element
mixture of elements
compound
mixture of compounds
compound
mixture of elements
element
mixture of compounds
Question 3
Which row about elements, mixtures and compounds is correct?
metallic
element
non-metallic
element
mixture
compound
copper
methane
brass
sulfur
brass
sulfur
copper
methane
copper
sulfur
brass
methane
brass
methane
copper
sulfur
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