Question

PlZ HELP I GIVE MEDALS .

Answer 1

just simply count the molecules on each side
for example on the first one we see that there
are 2 H2 molecules so we have 4 H atoms and 2O atoms on the left side
on the right side we also have 4 H atoms and 2 O atoms so therefore it is balanced

Answer 2

@peachRings Thank you . very much