What are the half-reactions for these redox processes?
Aqueous hydrogen peroxide acts on Co2+, and the products are hydroxide ion and Co3+, in basic solution.
Balance the oxidation half-reaction.
Balance the reduction half-reaction.
Methane reacts with oxygen gas and produces water and carbon dioxide.
Balance the reduction half-reaction.
Balance the oxidation half-reaction.
To recharge a lead storage battery, lead(II) sulphate is converted to lead and to lead(IV) oxide.
Balance the reduction half-reaction.
Balance the oxidation half-reaction.
Zinc metal dissolves in aqueous hydrochloric acid to give Zn2+ ions and hydrogen gas.
Balance the reduction half-reaction.
Balance the oxidation half-reaction.