Please choose the correct answer to the question: Which equation is correctly balanced for hydrogen and oxygen reacting to form water?

Answer1: H_{2} + O_{2} -> H_{2}O Answer2: 2H_{2} + O_{2} -> 2H_{2}O Answer3: 4H + O_{2} -> 2H_{2}O Answer4: H_{2} + O -> H_{2}O

Answer format: answer1/answer2/answer3/answer4