Choose from the suggested exothermic reaction. 1 nitrogen combustion 2 decomposition of calcium carbonate 3 interaction of barium chloride with sulfuric acid 4 combustion of methane.
Exothermic reactions are those that proceed with the release of thermal energy. From the list presented, the exothermic reaction is the combustion of methane. Like all hydrocarbons, methane reacts with oxygen to produce a lot of heat:
2СН4 + 4О2 = 2СО2 + 4Н2О.
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