5. (04.04 MC) When zinc metal reacts with oxygen gas, 2Zn(s) + O2(a) - 2700 m), large amounts of light and heat are released. A student states that this reaction is a combustion reaction but not a redox
reaction. Do you agree? Defend your answer by explaining whether or not it meets the requirements of each type of reaction. (6 points)

The correct answer is b

Hello,#agreed with joseph002.i got my source also from  source: hope this

In reversible reaction chemistry equilibrium is attained when the forward and reverse reactions are taking place at the same rate, thus, the concentrations of reactants and products remain the same. a reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back. in irreversible reactions on the other hand, the reactants react to form the products, which cannot revert back into reactants.

They adding another layer their bahaviors.