not understanding how these are wrong

Balance the chemical equation Rb(s) + H2O () RUOH(aq) + H2 (9) Express your answer as a chemical equation. Identify all of the phases in your answer. Submit Request Answe Part C Balance the chemical equation NIS (8) + 02 (2) ► NO (s) + S02 (9) Express your answer as a chemical equation. Identify all of the phases in your answer. ALORO? Submit Request Answer Part D Balance the chemical equation PbO (s) + 2 NH3 (9) + Pb(s) + N2 (9) + H20 (1) Express your answer as a chemical equation. Identify all of the phases in your answer.