Question

ch₄ + o₂ → co₂ + h₂o
synthesis
decomposition
single displacement
double displacement
combustion

Explanation:

Combustion reactions involve a substance reacting with oxygen, often producing carbon dioxide and water. In this case, \(CH_4\) (methane) reacts with \(O_2\) (oxygen) to form \(CO_2\) (carbon dioxide) and \(H_2O\) (water), which is characteristic of a combustion reaction. Synthesis reactions combine two or more reactants to form one product. Decomposition reactions break one reactant into multiple products. Single - displacement reactions involve one element displacing another in a compound. Double - displacement reactions involve the exchange of ions between two compounds.

Answer:

Combustion