Law of Conservation of Matter

Front

What does the Law of Conservation of Matter state?

Back

The Law of Conservation of Matter states that matter cannot be created or destroyed in a chemical reaction; it can only be transformed from one form to another.

Front

What must remain constant in a chemical reaction according to the Law of Conservation of Matter?

Back

The mass of the reactants must be equal to the mass of the products.

Front

What happens to matter during physical and chemical changes?

Back

Matter is transformed, but not created or destroyed.

Front

If 15 grams of powder reacts with 12 grams of liquid, what is the total mass of the reactants?

Back

The total mass of the reactants is 27 grams (15 grams + 12 grams).

Front

What can be concluded if the products of a reaction weigh less than the reactants?

Back

It suggests that some mass has been lost, which violates the Law of Conservation of Matter.

Front

What is an example of a process where matter is not destroyed?

Back

Burning wood is an example where matter is transformed, not destroyed.

Front

What is the mass of gas produced if 15 grams of powder and 12 grams of liquid produce a bubbling black liquid weighing 22 grams?

Back

5 grams of gas was produced (27 grams - 22 grams).

Front

What is the relationship between reactants and products in a chemical reaction?

Back

The mass of the reactants must equal the mass of the products.

Front

Can matter be created during a chemical reaction?

Back

No, according to the Law of Conservation of Matter, matter cannot be created.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change where matter is transformed but not created or destroyed.