Law of Conservation of Mass

Front

What does the law of conservation of mass state?

Back

The law of conservation of mass states that the number of atoms in the reactants and the products remains the same.

Front

What happens to matter during a chemical reaction?

Back

Matter cannot be created or destroyed; it can only be transformed or changed.

Front

When is a chemical reaction considered balanced?

Back

A chemical reaction is balanced when both sides have the same number of atoms.

Front

How many Calcium (Ca) atoms are present in Ca(OH)2?

Back

There is 1 atom of Calcium (Ca) in Ca(OH)2.

Front

What is a precipitate?

Back

A precipitate is a solid that forms when two liquids are mixed.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is upheld, meaning the same number of each type of atom is present on both sides.

Front

Can mass change during a chemical reaction?

Back

No, the total mass of the reactants must equal the total mass of the products.

Front

What is an example of a transformation of matter?

Back

An example of a transformation of matter is the reaction between vinegar and baking soda, which produces carbon dioxide gas.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change.

Front

What are products in a chemical reaction?

Back

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