Question

a student performs the following experiment. step 1: she pours a colorless solution into a beaker that contains another colorless liquid. yellow particles appear in the liquid. step 2: she lets the yellow particles settle in the beaker and then separates the colorless liquid by decantation. what has most likely occurred in the beaker? a chemical change in step 1 and a physical change in step 2 a physical change in step 1 and a chemical change in step 2 chemical changes in both step 1 and step 2 physical changes in both step 1 and step 2

Explanation:

In step 1, a new substance (yellow particles) is formed when two color - less liquids are mixed, indicating a chemical change. In step 2, decantation is a physical separation method that does not change the chemical composition of the substances, so it is a physical change.

Answer:

A. a chemical change in step 1 and a physical change in step 2