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.

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What are reactants?

Back

Reactants are the starting substances in a chemical reaction that undergo change.

Front

What are products?

Back

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

Front

If you start with 20g of reactants, how much should you have in products?

Back

You should have a total of 20g of products, as matter is conserved.

Front

What happens to the total mass in a chemical reaction?

Back

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

Front

How many grams of oxygen are needed to show conservation of mass in a reaction?

Back

7 grams of oxygen are needed.

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How many grams of sliced apple are shown in the example of conservation of mass?

Back

230 grams of sliced apple are shown.

Front

How many kilograms of smoke are produced in the example of conservation of mass?

Back

3 kilograms of smoke are produced.

Front

What is an example of a chemical reaction?

Back

An example of a chemical reaction is the burning of wood, which produces ash, smoke, and gases.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.