When a chemical reaction occurs, the compounds can be separated by physical means a phase change takes place the physical and chemical properties of the reactants are the same as the properties of the products the physical and chemical properties of the products are different from the reactants

Option (d) is the correct answer.

Explanation:

When a chemical reaction occurs then it results in the formation of new products because a chemical reaction brings change in chemical composition of reactants.

As a result, new bonds are formed which give products. Therefore, properties of products will be different from the properties of reactants.

Thus, we can conclude that out of the given options, when a chemical reaction occurs, the physical and chemical properties of the products are different from the reactants.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b