Law of Conservation of Matter

Front

What is the Law of Conservation of Matter?

Back

Matter is never created or destroyed.

Front

What happens to the measurable mass of products in an open system during a chemical reaction?

Back

The measurable mass might decrease because any gas produced can escape (the actual mass would stay the same).

Front

If an Oreo cookie weighs 20 grams and is crushed into crumbs, how much do the crumbs weigh?

Back

20 grams.

Front

If the mass of a chemical reaction's product is 15 grams, what would the mass of the reactants be?

Back

15 grams.

Front

What does the Law of Conservation of Matter imply about chemical reactions?

Back

The total mass of reactants equals the total mass of products.

Front

Can matter be created or destroyed in a chemical reaction?

Back

No, matter cannot be created or destroyed.

Front

What is an example of a physical change that demonstrates the Law of Conservation of Matter?

Back

Crushing a can; the mass remains the same.

Front

In a closed system, how does the mass of reactants compare to the mass of products?

Back

They are equal.

Front

What is an open system in the context of chemical reactions?

Back

A system where matter can enter or leave.

Front

What happens to the mass of reactants in a closed system during a chemical reaction?

Back

The mass remains constant.