7 - Lesson 12 Chemical Reaction Vocab

Front

What is an endothermic reaction?

Back

A chemical reaction that absorbs more energy from the surroundings than it releases.

Front

What is a reactant?

Back

A substance that exists before a chemical reaction takes place and changes as a result of the reaction.

Front

What is a chemical equation?

Back

A shorthand notation made up of arrows and chemical formulas for reactants and products that summarizes what happens during a chemical reaction.

Front

What is an exothermic reaction?

Back

A chemical reaction that releases more energy to the surroundings than it absorbs.

Front

What is a chemical reaction?

Back

A process in which one or more new substances form from one or more other substances.

Front

What are products in a chemical reaction?

Back

Substances that are formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, matter is neither created nor destroyed; it is conserved.

Front

What is activation energy?

Back

The minimum amount of energy required for a chemical reaction to occur.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

Front

What is a chemical bond?

Back

A lasting attraction between atoms that enables the formation of chemical compounds.