I am having problems with oxidation states

pecily ahich of the following are oxitation reduction reacdans, and if it in, kenatily the oxdiging agent, then reducing agent, the substance being eaklired, and tin ubitance being reduced. If it is not, select No and leaw the fobowing boxes blank. Express your answers as a chemical formulas. Omik staters of mattes Mg(v)+2Ag+(aq)+2Ag(v)+Mg2(aq) b. II(g)+NH3(g)NH4I(o) c. SnC4(t)+2H3O(t)+4HCl(aq)+SnO4(0) d. SiCl4(v)+2Ca(v)+2CaCl4(v)+Si(v) 4. Zn(OH)42(aq)+ZeO22(aq)+2H2O()