Chemical Reaction Terms

Front

The elements, compounds, or molecules that go into a reaction?

Back

Reactants

Front

The energy required to break a given bond = to the amount you get back when a new bond is formed.

Back

Bond Energy

Front

The elements, compounds or molecules that come out of a reaction.

Back

Products

Front

The energy needed to start a reaction.

Back

Activation Energy

Front

Reactant (ingredient) that runs out first. It causes the reaction to stop.

Back

Limiting Reactant

Front

The amount of matter that goes into a reaction equals the amount that comes out.

Back

Law of Conservation of Matter

Front

A reaction that absorbs more energy than it releases.

Back

Endothermic Reaction

Front

A reaction that releases more energy than it absorbed.

Back

Exothermic Reaction

Front

When a complex substance is broken down into two or more simpler substances. AB = A + B

Back

Decomposition Reaction

Front

Two or more simpler substances combine to produce a more complex substance. A + B = AB

Back

Synthesis Reaction