jikyakeyashia jikyakeyashia

11-10-2017
Biology

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what is one sign that indicates a physical change?
a) matter changes, but no new substance is formed
b) a substance changes color when exposed to air.
c) something catches fire and turns back
d) temperature drops as two liquids are mixed together

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alyssadurbin alyssadurbin

11-10-2017

something catches fire and turns back

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