2324 Law of Conservation of Mass

Front

What is the Law of Conservation of Mass?

Back

Mass is never created or destroyed in a chemical reaction.

Front

In a chemical reaction, what happens to the total mass of the substances involved?

Back

The total mass remains the same before and after the reaction.

Front

Back

There are 3 elements: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

If Maria fills a bowl with 200 g of water and freezes it, what will be the mass of the frozen water?

Back

The mass of the frozen water will be 200 g.

Front

What does it mean when we say mass is conserved in a chemical reaction?

Back

It means that the mass of the reactants equals the mass of the products.

Front

Can mass be created or destroyed during a physical change?

Back

No, mass cannot be created or destroyed during a physical change.

Front

What is an example of a physical change?

Back

Freezing water is an example of a physical change.

Front

What is an example of a chemical reaction?

Back

Burning wood is an example of a chemical reaction.

Front

What happens to the mass of reactants when they form products in a chemical reaction?

Back

The mass of the reactants is equal to the mass of the products.

Front

What is the significance of the Law of Conservation of Mass in chemistry?

Back

It helps chemists balance chemical equations and predict the outcomes of reactions.