Conservation of Mass

Front

What are substances present at the start of a chemical reaction?

Back

Reactants

Front

When sodium and chlorine combine to form sodium chloride, what is sodium chloride considered?

Back

Product

Front

What does the principle of conservation of mass state?

Back

Matter is not created or destroyed.

Front

In a reaction A + B ----> C, if reactant A has 5g and product C has 9g, how many grams does reactant B have?

Back

4g

Front

According to the Law of Conservation of Mass, what happens to wood and oxygen when burned?

Back

The atoms in the wood and oxygen rearrange and form smoke and ash.

Front

What is the Law of Conservation of Mass?

Back

The total mass of reactants equals the total mass of products in a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A substance formed as a result of a chemical reaction.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What happens to the mass of reactants and products in a closed system?

Back

The mass remains constant.

Front

What is an example of a chemical reaction that demonstrates conservation of mass?

Back

Burning wood, where wood and oxygen produce ash and smoke.