Question

Cu+ xHNO --->Cu (NO3)2 + yNO2 + zH2O, the above equation balance , when​

Answer 1

Explanation:

Applying POAC ( principle of atomic conservation) or the law of conservation of mass on H and N atoms.

Here are 4H on RHS of the equation.

Hence, the value of x should be 4.

N atoms on LHS of equation =4

N atoms on RHS of equation is =2+y

4=2+y

y=2

So, overall reaction is, Cu+4HNO3 →Cu(NO3) 2 +2NO2+2H2O.