The mass of the substances are measured before they are combined and after the reaction takes place. Both measurements show that the substances have a mass of 422 grams. The figure shows a before and after picture of the experiment.

Question

Use the drop-down menus to complete the sentences about the changes that have taken place in the reaction.

The mass of the ingredients used in the experiment ​
, but the volume of the ingredients used in the experiment ​
. Because of this, the ingredients ​
.

Answer 1

The mass of the ingredients used in the experiment remains the same, but the volume of the ingredients used in the experiment changes. Because of this, the ingredients undergo a chemical reaction.