What term best describes the type of reaction that happens when a single element reacts with a molecule or compound, producing a new single element and a new molecule or compound? a. an isolation reaction b. a single combustion reaction c. a single replacement reaction d. a double replacement reaction

a single replacement reaction

Explanation:

Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.

Example:  

Double displacement reaction is one in which exchange of ions take place.  

Example:

Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.

Example:

Here Zinc an element reacts with the compound copper chloride  to form new compound zinc chloride and new element copper.