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, the appearance of yellow particles when two color - less solutions are mixed likely indicates a chemical reaction forming a new substance (precipitate). In step 2, separating the liquid by decantation is a physical process of separating a solid - liquid mixture without changing the chemical identity of the substances.

Answer:

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