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Which would show an example of how physical changes are reversible?
cutting a gold bar in two pieces and then putting the pieces next to each other
O burning a match and then relighting it
melting tin and then cooling it into a mold
combining sodium and chlorine to make the new material of table salt
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Answer 1

A reversible physical change example is melting tin and then cooling it to a mold.

Step-by-step explanation:

Physical Changes

A physical change is a change in the physical properties of a substance but does not result in the formation of a new substance. It is generally reversible.

Example of Reversible Physical Change

An example of a reversible physical change is melting tin and then cooling it into a mold. When tin is melted, it changes from a solid to a liquid, but it can be cooled and solidified again to regain its original form.

Learn more about Reversible physical changes