shann3702 shann3702 24-11-2022 Chemistry contestada a mixture of hydrocarbons contains 34.5% heptane, c7h16, 14.1% nonane, c9h20, and 51.4% octane, c8h18. the mixture is combusted in an excess of oxygen. what mass of co2 is generated from the combustion of 13.8 kg of the mixture?