Question 9.
Imagine that a 2 g sample of cobalt, a lustrous grey metal, is heated until it melts.
As it is heated, what will happen to the sample?
a) Its volume will decrease and its mass will stay the same.
b) Its mass and volume will increase.
c) Its volume will increase and its mass will decrease.
d) Its volume will increase but its mass will stay the same.
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