6. the mass of substances after a chemical reaction is _ the mass of the substances before the reaction…

6. the mass of substances after a chemical reaction is _ the mass of the substances before the reaction. equal to less than twice as much as more than

6. the mass of substances after a chemical reaction is _ the mass of the substances before the reaction. equal to less than twice as much as more than

Answer

Brief Explanations:

According to the law of conservation of mass in chemistry, the total mass of substances before a chemical reaction is equal to the total mass of substances after the reaction. No mass is created or destroyed during a chemical reaction, only rearranged.

Answer:

equal to