Question

The decomposition of water into hydrogen gas H2 and oxygen gas O2 can be modeled by the balanced chemical equation
A) H2 + O2 → H2O
B) H2O → H2 + O2
C) 2H2 + O2 → 2H2O
D) 2H2O → 2H2 + O2

Answer 1

since you want to produce H2O, clearly not B or D
Now, which other equation is balanced?

Answer 2

oops. Sorry. Not A or C. I read it backwards.

Answer 3

what im confused

Answer 4

is it d i think its d

Answer 5

Yes, D
2 H2O molecules have
4 H atoms or 2H2
and 2 O atoms