1.(1) __ HCl(浓)+ __ (O)_(2)xlongequal (Delta ) () __ _(2)uparrow + __-|||-(Cl)_(2)+ __ H2O ()-|||-(2) __ Cu+ __ HNO3(稀)= () __ (N(O)_(3))_(2)+ __-|||-+ () __ H2O ()-|||-(3) __ + __ (O)_(3)+ () __ _(2)S(O)_(4)= () __ _(2)+ __-|||-_(2)S(O)_(4)+ () __ H2O ()-|||-(4) __ + __ KOH= () __ _(2)S+ __ _(2)S(O)_(3)+ ()-|||-__ H2O ()-|||-(5) __ (O)_(4)+ () __ H^++ __ ^-=!=!= __ ^2+-|||-__ (I)_(2)4+ __ H2O ()-|||-(6) __ (Mn{O)_(4)}^-+ () __ _(2)(O)_(2)+ () __ ^+= __ ^2+-|||-__ _(2)A+() __ H2O ()-|||-(7) __ _(2)(O)_(2)^2-+ () __ (Mn{O)_(3)}^-+ () __ ^+= __ (O)_(2)uparrow +-|||-__ ^2+ __ H2O ()