Question

1. if you heat a red powder to a high temperature and observe that it changes to a silver color and remains that way when it cools, this would be good evidence that a chemical reaction has occurred. true false

Explanation:

A chemical reaction often leads to a change in color and a new substance being formed. Here, the red - powder changing to silver color and remaining so after cooling indicates a new substance has been created, which is a sign of a chemical reaction.

Answer:

TRUE