Which chemical equation is balanced?

A. H2O----> H2+2O2
B. 2H2O---> 2H2+O2
C. 2H2O---> H2+2O2
D. H2O----> 2H2+2O2
Is the answer A?
Thanks

Honestly, I don't think so.

For "H2O" and "H2", there is a coefficient of 2. "O2" has a coefficient of 1

This is "2H2O" and "2H2". And just "O2"

"2H2O = 2H2 + O2"

So, B is the answer.

I hope this helps! :)

P.S. I got the answer of 2H2O = 2H2 + O2 from a website, but I tried to explain it better off of that website. I am not sure I explained right, but I know B is correct.

It was right! Thx!

To determine which chemical equation is balanced, we need to check if the number of each type of atom is the same on both sides of the equation. Let's analyze each option:

A. H2O ----> H2 + 2O2
On the left side, we have 2 hydrogen atoms (H) and 1 oxygen atom (O). On the right side, we have 2 hydrogen atoms (H) and 4 oxygen atoms (O). So this equation is unbalanced.

B. 2H2O ---> 2H2 + O2
On the left side, we have 4 hydrogen atoms (H) and 2 oxygen atoms (O). On the right side, we have 4 hydrogen atoms (H) and 2 oxygen atoms (O). So this equation is balanced.

C. 2H2O ---> H2 + 2O2
On the left side, we have 4 hydrogen atoms (H) and 2 oxygen atoms (O). On the right side, we have 2 hydrogen atoms (H) and 4 oxygen atoms (O). So this equation is unbalanced.

D. H2O ----> 2H2 + 2O2
On the left side, we have 2 hydrogen atoms (H) and 1 oxygen atom (O). On the right side, we have 4 hydrogen atoms (H) and 4 oxygen atoms (O). So this equation is unbalanced.

Based on our analysis, the balanced chemical equation is option B: 2H2O ---> 2H2 + O2. Each side of this equation has the same number of hydrogen and oxygen atoms.