Chemistry, 23.07.2019 19:30, Jocelyn0925

Which of the following statements is true of combustion reactions? a. hydrogen gas (h2) must be one of the reactants b. water (h2o) is always a product c. energy is released by the reaction d. carbon monoxide (co2) is always produced

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Which of the following statements is true of combustion reactions? a. hydrogen gas (h2) must be one...