Reactions Unit Review 2024-2025

Front

What is a precipitate?

Back

A precipitate is a solid substance that forms in a solution during a chemical reaction.

Front

What type of reaction occurs in the presence of oxygen and produces carbon dioxide and water?

Back

Combustion reaction.

Front

Why is it important to balance chemical equations?

Back

Chemical equations must be balanced because matter cannot be created or destroyed, only rearranged.

Front

Which element is more reactive, silver (Ag) or calcium (Ca)?

Back

Calcium (Ca) is more reactive than silver (Ag).

Front

What does the arrow in a chemical equation represent?

Back

The arrow indicates 'yields' or the direction of the reaction.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

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.

Front

What is a reactant?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of reaction where two compounds exchange ions to form two new compounds.