Conservation of matter

Front

What is the Law of Conservation of Matter?

Back

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

Front

When ice melts, what happens to its weight?

Back

The weight of the water remains the same as the weight of the ice.

Front

What happens to the mass of a substance when it changes from a solid to a liquid?

Back

The mass stays the same.

Front

What is evaporation?

Back

Evaporation is the process by which a liquid changes into a gas.

Front

If 15 grams of sugar are dissolved in 300 grams of water, what is the total mass of the mixture?

Back

The total mass of the mixture is 315 grams.

Front

What is the process called when a liquid turns into a solid?

Back

The process is called freezing.

Front

What is the process called when a gas changes into a liquid?

Back

The process is called condensation.

Front

What is the weight of 100 grams of ice when it melts?

Back

The weight remains 100 grams.

Front

What happens to the total amount of matter in a closed system during a chemical reaction?

Back

The total amount of matter stays the same.

Front

What is the term for the change of state from solid to liquid?

Back

The term is melting.