Question

A student performs the following experiment.

Answer 1

Answer:

Two different changes have occurred in the beaker. The description of the step 1 suggests that most likely a chemical change has occured while the description of the step 2 correspond to a physical change.

Explanation:

When the mixture of two liquid colorless substances results in the appearance of solid particles you first thing in the appareance of a new substance. If this is the case, it means that the original substances reacted chemically to form a new product, so this is a chemical change.

On the other hand, the second step describes just a physical change as it has been just that the yellow particles settled and then a physical separation by decantation. Decantation does not change the chemical properties of the particles settled, they are jsut separeated from the liquid. During this step both the yellow particles and the liquid in the beaker keep their chemical properties, so this is just a physical change.

Answer 2

Answer:

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

Explanation:

edge 2020

hope this helps!