What type of reaction is represented by the following chemical equation?
ch4 + 2o2 ➡ co2 + 2h2o + heat/light
double replacement
single replacement
combustion
decomposition

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

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explanation: