8.5E - Law of Conservation of Mass(AML)

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change to form products.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

If 50g of reactants are used, what will be the mass of the products?

Back

The mass of the products will also be 50g, according to the Law of Conservation of Mass.

Front

What does it mean for a chemical reaction to be balanced?

Back

A chemical reaction is balanced when both sides of the equation have the same number of atoms for each element.

Front

What happens to the mass of substances during a chemical reaction?

Back

The total mass of substances remains constant; it does not change during the reaction.

Front

How do you calculate the total mass of a solution?

Back

To calculate the total mass of a solution, add the mass of all components together.

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What is an example of a chemical change?

Back

An example of a chemical change is the rusting of iron, where iron reacts with oxygen to form iron oxide.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation.