The Law of Conservation of Mass Assessment

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change in a reaction.

Front

What is mass?

Back

Mass is the amount of matter in an object, typically measured in grams or kilograms.

Front

What is an open system in chemistry?

Back

An open system is one where matter and energy can flow in and out of the system.

Front

What is a closed system in chemistry?

Back

A closed system is one where matter cannot enter or leave, but energy can be exchanged.

Front

How do you calculate the total mass in a chemical reaction?

Back

The total mass of the reactants must equal the total mass of the products.

Front

What happens to atoms during a chemical reaction?

Back

Atoms are rearranged to form new substances, but they are neither created nor destroyed.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

Can mass be created or destroyed in a chemical reaction?

Back

No, according to the Law of Conservation of Mass, mass cannot be created or destroyed.