The density of copper decreases as temperature increases (as does the density of most substances). Which change
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The density of copper decreases as temperature increases (as does the density of most substances). Which change occurs in a sample of copper when it is warmed from room temperature to 95 °C?
(a) The sample becomes lighter.
(b) The sample becomes heavier.
(c) The sample expands.
(d) The sample contracts.
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