a student performs the following experiment.\nstep 1: she pours a colorless solution into a beaker that…

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

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

Answer

Brief Explanations:

In step 1, a new substance (yellow particles) is formed when two color - less liquids are mixed, which indicates a chemical change as new chemical bonds are formed. In step 2, decantation is a physical separation method where no new substances are formed, just the separation of a solid (settled yellow particles) from a liquid. So, step 1 is a chemical change and step 2 is a physical change.

Answer:

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