This lab question is: how can you distinguish a physical change from a chemical change?
which statements below are an appropriate hypothesis in response to this question? check all that
apply.
if a substance changes state of matter (e. g., liquid to gas), then this is a physical change because
the original properties of the substance have not changed.
if a substance undergoes a physical change, then it will retain most of its original properties
because no new substance is formed
if a substance undergoes a chemical change, then it will hot retain its original properties because a
new substance is formed
if a precipitate is formed when two substances are mixed, then a chemical change has taken place
because precipitates are new substances.