Question

1. Heating of zinc oxide is a
change.

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Answer 1

Answer:

chemical

Explanation:

the name of the process is oxidation and it is a chemical change.

Answer 2

Zinc Oxide is originally a white powder. When heated up, it turns yellow but does not decompose and when it is removed from the heat it gradually goes back to its original white color. If you heat it strongly enough to very high temperatures it will sublime without apparent decomposition.