Question

what describes a chemical change

Answer 1

Answer:

A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. ... A chemical change is different from a physical change, which doesn't rearrange atoms or molecules and produce a completely new substance.

Answer 2

Answer:

Explanation:

chemical change is a change:

1)  which is irreversible

2) in which a new substance is formed.

3) which is a permanent change

4) the properties are altered

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