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- Provide the hydrotreating reactions for the compound C9H7N show all possible correct reactionsWhen hydrocarbons undergo complete combustion, the product(s) is(are) A)H2O. B)CO2and H2O. C)CO2and O2. D)H2O and O2. E)CO2.What mass of oxygen is needed fro the complete combustion of 4.70*10-3 g of methane?