Experiment:Classification of Chemical ReactionsThis laboratory experiment has been videoed for you.

+ Results:MetalObservationBalanced Reaction EquationCo(s) + 2HC (80) > CoCh (ag) + Ha (g)Reaction is slow. Gas is evolved,Co_is oxidized to _Co'Ex. Cosolution turns blue, no obvious2H* _ is reduced to _H2change in temperature_2H' _ is the oxidizing agent_Co_is the reducing agentis oxidized toCuis reduced tois the oxidizing agentis the reducing agentis oxidized toFeis reduced tois the oxidizing agentis the reducing agentis oxidized toSnis reduced tois the oxidizing agentis the reducing agent