Law of Conservation of Mass

Front

What is the measure of the amount of matter?

Back

Mass

Front

What happens to the weight of reactants and products in a chemical reaction?

Back

They both will weigh the same.

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be created nor destroyed; it can only be transformed or changed.

Front

If you have 12 ounces of water and add 6 ice cubes weighing 1 ounce each, what will be the weight after the ice melts?

Back

18 ounces.

Front

If a reaction starts with 20g of reactants, how much should it produce?

Back

A total of 20g.

Front

What is the difference between mass and weight?

Back

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

Front

Can mass change during a chemical reaction?

Back

No, the total mass remains constant.

Front

What is an example of a chemical change?

Back

Burning wood, which transforms it into ash and gases.

Front

What is an example of a physical change?

Back

Melting ice, which changes from solid to liquid but remains water.

Front

What is the formula for calculating mass?

Back

Mass = Density x Volume.