Question

H2+O2=H2O Balance this equation

Answer 1

lhs=rhs
h=2,h=2
o=2,o=1
2h2+o2=2h2o
hence balanced

Answer 2

hy mate here is your anshwer=>

H2+O2=H2O

2H2+O2=H2O

2H2+O2+=2H2O✔

i hope it help you