Question

Which chemical equation is balanced?
a- h2o (arrow) h2 + 2o2
b- 2h2o (arrow) 2h2 + o2
c- 2h2o (arrow) h2 + 2o2
d- h2o (arrow) 2h2 + 2o2

thanks in advance

Answer 1

the answer is B

Answer 2

An equation is balanced when the total number of atoms for each and every element is the same on both sides of the chmical equation.
B satisfies the theory.

Answer 3

@Ramzy197 may you also give explanation to your answers.

Answer 4

ok sorry
2h2o--> 2h2 + 02
this is the answer because this is the only equation that shows a balance of the two elements. on the left hand side it shows you that there are 4 hydrogen atoms and 2 oxygen atoms and then on the right hand side it shows that there are 4 hydrogen atoms and 2 oxygen atoms hence its balanced
and @Hoslos this is good enough explanation?

Answer 5

Yes, you got it.

Answer 6

awh thanks thats amazing @Hoslos

Answer 7

No problem.

Answer 8

c