Conservation of Matter

Front

What is the Conservation of Matter?

Back

The principle that matter cannot be created or destroyed in a chemical reaction.

Front

What happens to the weight of matter in a closed system?

Back

The weight stays the same before and after a reaction.

Front

If 25 grams of sugar dissolves in 150 grams of water, what is the total weight?

Back

175 grams.

Front

What is an example of matter escaping during a reaction?

Back

Gas escaping from burning materials.

Front

What does it mean when we say matter is conserved?

Back

It means the total amount of matter remains constant.

Front

What happens to the weight of a sealed air bag before and after it inflates?

Back

The weight stays the same.

Front

In the fire snake demo, what was observed about the weight before and after?

Back

The weight was about the same before and after.

Front

What is an example of matter being transformed?

Back

Sugar dissolving in water.

Front

What happens to the weight of a balloon as it collects gas?

Back

The weight stays the same.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.