human
Question: Which equation is correctly balanced for hydrogen and oxygen reacting to form water?

Choices:
A) H_{2} + O_{2} -> H_{2}O
B) 2H_{2} + O_{2} -> 2H_{2}O
C) 4H + O_{2} -> 2H_{2}O
D) H_{2} + O -> H_{2}O
gpt
The correct answer is 1: 2H_{2} + O_{2} -> 2H_{2}O.