Ch 12 Chemical Reactions and Equations

Front

What is an exothermic reaction?

Back

A chemical reaction that releases energy in the form of heat or light.

Front

What is an endothermic reaction?

Back

A chemical reaction that absorbs energy from its surroundings.

Front

When balancing a chemical equation, what can you change?

Back

You can only change coefficients, not subscripts.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is a synthesis reaction?

Back

A type of reaction where two or more substances combine to form a new compound.

Front

What is a decomposition reaction?

Back

A type of reaction where a single compound breaks down into two or more simpler substances.

Front

What is a single displacement reaction?

Back

A reaction where one element replaces another in a compound.

Front

What is a double displacement reaction?

Back

A reaction where two compounds exchange ions or elements to form two new compounds.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

Front

What are reactants?

Back

Substances that undergo a chemical change in a reaction.