I really need help! ((The balanced equation is attached))

a. Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction & which is the reduction reaction.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Identify a strong intermolecular force of attraction between an alcohol

Which of the following units is not an official si unit