Question

HOW TO BALANCE H2+ O2 -----> H20

Answer 1

Explanation:

LHS: RHS

Elements.

H. 2.[2*2=4] 2[2*2=4]

O. 2. 1 [1*2=2]

2H2+O2----------->2H2O

now,Atoms present on reactants and product is equal,thus obeying Law of conservation of mass