Question

A large bar of solid gold is melted into liquid. The liquid is then poured into

molds to make a number of gold coins. Was this a chemical or physical
change? Explain.


Chemical, because the gold turned into something new and is no longer gold.


Physical, because the gold changed size and shape, but is still gold.

Answer 1

It is physical, the gold is still gold and there has not been any chemical change. Melting, boiling, freezing, etc. are physical changes.