Question

x KMnO4 + y NH3 ->KNO2+MnO2+KOH+H2O

Answer 1

Answer:

x = 2, y = 1

Explanation:

The given skeletal equation is :

x KMnO₄ + y NH₃ ------> KNO₂ + MNO₂ + H₂O

1. First we check the # of atoms of K -1 at LEFT HAND SIDE

                                                                  -2 at RIGHT HAND SIDE

Then we balance the K atoms by putting x = 2.

2 KMnO₄ + y NH₃ ------> KNO₂ + MNO₂ + H₂O

    2.  Next we check the # of atoms of Mn  -2 at LEFT HAND SIDE

                                                                         -1 at RIGHT HAND SIDE

Then we balance the Mn atoms

2 KMnO₄ + y NH₃ ------> KNO₂ + 2MNO₂ + H₂O

    3. Now we check the stoichiometric coefficients of all the other atoms.              

        [O,N,H]

At last we can balance the equation by putting y = 1 :

2 KMnO₄ +  NH₃ ------> KNO₂ + 2MNO₂ + H₂O    ( Balanced equation )