Law of 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

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

Back

The mass of the reactants is equal to the mass of the products.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, demonstrating the conservation of mass.

Front

What does a balanced chemical equation indicate about a chemical reaction?

Back

It indicates the number of atoms involved in the reaction.

Front

What is an example of a chemical reaction that demonstrates the conservation of mass?

Back

H2O + CO2 → H2CO3 is an example where the number of atoms is conserved.

Front

What is the significance of measuring the mass of products in a reaction?

Back

Measuring the mass of products helps confirm that mass is conserved during the reaction.

Front

What is the relationship between the volume of solid carbon dioxide and carbon dioxide gas after sublimation?

Back

They have the same mass, but the gas occupies a larger volume than the solid.

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without becoming a liquid.

Front

How do you calculate the mass of a product if you know the mass of the reactants?

Back

Subtract the mass of the known product from the total mass of the reactants to find the mass of the other product.

Front

What is an example of a physical change?

Back

Melting ice is a physical change where the state of matter changes but the mass remains the same.