Understanding Chemical Reactions

Front

What are the reactants in the chemical equation 2H₂O₂ → 2H₂O + O₂?

Back

The reactant is hydrogen peroxide (2H₂O₂).

Front

What happens to hydrogen peroxide during a chemical reaction?

Back

The bonds in the hydrogen peroxide molecules break, turning it into water (H₂O) and oxygen (O₂).

Front

What is certain proof that a chemical reaction has occurred?

Back

Examining the properties of the matter is certain proof that a chemical reaction has occurred.

Front

What do we call each substance written to the LEFT of the arrow in a chemical equation?

Back

These substances are called reactants.

Front

What does it indicate if the arrangement of atoms in a substance changes?

Back

It indicates that a chemical reaction has occurred.

Front

What is a chemical reaction?

Back

A chemical reaction is a process where reactants transform into products through the breaking and forming of bonds.

Front

What are products in a chemical equation?

Back

Products are the substances formed as a result of a chemical reaction, written to the RIGHT of the arrow.

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 catalyst?

Back

A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.