Answer:
combustion reaction.
Explanation:
Th given chemical equation is a combustion reaction.
CH₄ or methane is a hydrocarbon. When a hydrocarbon reacts with oxygen it forms carbon dioxide and water.
All other options are incorrect.
In a single replacement reaction one element replaces another element in a compound.
Zn + H₂SO₄ = ZnSO₄ + H₂
In a double replacement reaction the cations of the reactants combines with a different anion of the reactant to form new products.
AgNO₃ + NaCl = AgCl + NaNO₃
In a decomposition reaction a complex molecule is broken down into simple molecules.
H₂O₂ = 2H₂O + O₂
