Identify the o0XIdant and reductant and the atoms undergoing o0XIdation and reduction in the following redox reactions.
`H_2S + 2HNO_3 to 2NO_2 + 2H_2O + S`

Identify the o0XIdant and reductant and the atoms undergoing o0XIdation and reduction in the following redox reactions. MnO_2+ 4HCl toMnCl_2 + Cl_2 + 2H_2O

Balance the following equations. H_2 + O_2 rarrH_2O

In a redox reaction, oxidation and reduction occur simultaneously. b) Identify the species undergoing oxidation and reduction in the following reaction : H_2S (s)+ Cl_2(g)rarr 2HCl(g)+ S(s)

Justify the following reaction is redox reaction 4NH_3(g) + 5O_2 (g) to 4NO (g) + 6H_2O (g)

Identify the subtance oxidized, reduced, oxidizing agent and reducing agent ror each of the following reactions. a) '2 AgBr(s)+C_6 H_6 O_2(aq) rarr 2 Ag(s)+2 HBr(aq)+C_6 H_4 O_2(aq)' b) 'HCHO(l)+2[Ag(NH_3)_2]^+(a q)(+3) OH-(aq) rarr 2 Ag(s)+HCOO^-(aq)+ 4 NH_3(aq)+2 H_2 O(l)' c) 'HCHO(l)+2 Cu^(2+)(aq)+5 OH^-(aq) rarr Cu_2 O(s)+HCOO^-(aq)(+3) H_2 O(l)' d) 'N_2 H_4(l)+2 H_2 O_2(l) rarr N_2(g)+4 H_2 O(l)' e) 'Pb(s)+PbO_2(s)+2)H_2 SO_4(aq) rarr 2 PbSO_4(s)+2 H_2 O(I)'

Justify the following reaction is redox reaction Fe_2O_3 (s) + 3CO (g) to 2Fe (s) + 3CO_2 (g)

Justify the given reaction is redox reaction CuO (s) + H_2 (g) toCu (s) +H_2O (g)