Question

1. when a scientist performs an experiment, there are many changes that can occur. which observation should she list as a chemical change? the substance changed into a new substance. the shape of the substance changed. the substance was heated. the volume of the substance changed.

Explanation:

A chemical change results in the formation of a new substance. Changes in shape, volume, or just heating without forming a new substance are physical changes.

Answer:

The substance changed into a new substance.