Chemical Reactions

Front

What is a Decomposition Reaction?

Back

A chemical reaction where a compound breaks down into two or more simpler substances.

Front

What is a Synthesis Reaction?

Back

A chemical reaction where two or more simple substances combine to form a more complex substance.

Front

What is an Exothermic Reaction?

Back

A chemical reaction that releases heat energy to the surroundings.

Front

What is an Endothermic Reaction?

Back

A chemical reaction that absorbs heat energy from the surroundings.

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 to form two new compounds.

Front

What is a Coefficient in a chemical equation?

Back

A number placed in front of a compound to indicate how many molecules are involved in the reaction.

Front

What is a Subscript in a chemical formula?

Back

A small number written after an element symbol that indicates the number of atoms of that element in a molecule.

Front

What is the Law of Conservation of Mass?

Back

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

Front

What is a Reactant?

Back

A substance that undergoes change during a chemical reaction.