Perchlorates are explosives .Ammonium perchlorate on heating explodes forming `N_(2),O_(2),HCl` and `H_(2)O` gases .The total number of molecules (or moles) in the balanced chemical equation for explosion of ammonium perchlorate is

Balance the chemical equations: NH_3 + O_2 to NO + H_2O

Balance the chemical equations: Pb_3 O_4 to PbO + O_2

Balance the chemical equations: Fe_3O_4 + H_2 to Fe + H_2O

Reaction of hydrated ferric chloride (FeCl_(3).6H_(2)O) with thionyl chloride gives anhydrous ferric chloride with evolution of hydrochloric acid (HCl) and sulphur dioxide (SO_(2)) gases. The number of sulphur dioxide (SO_(2)) molecules involved in the balanced chemical equation is :

In alkaline medium CIO_(2) oxidises to H_(2)O_(2) and O_(2) and itself gets reduced to Cl^(-) . How many moles of H_(2)O_(2) are oxidised by 1 mole of ClO_(2) ? Hint: The balanced chemical equation is:

Balance the chemical equations: CuO + NH_3 to Cu + H_2O + N_2

Complete and balance the following chemical equations : HCl_((aq)) + H_(2) O_((l)) to