Question

Helpp!! Please it’s balancing equations and I really need help in it it’s so hard theirs two other parts if you can help with those too:))

Answer 1

1.) 2=H2 1=O2 2=H2O
2.)
1st one - 2,6,2,3
2nd one - 2,2,1
3rd one - 1,2,2,1
4th one - 1,2,1,2