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?
Answer
A
a chemical change in step 1 and a physical change in step 2
B
a physical change in step 1 and a chemical change in step 2