Please choose the correct answer to the question: The equation for the synthesis of water is given below. 2H_{2} + O_{2} -> 2H_{2}O How many grams of oxygen gas are needed to produce 36.0 grams of water?

Answer1: 9.00 grams Answer2: 16.0 grams Answer3: 32.0 grams Answer4: 40.0 grams

Answer format: answer1/answer2/answer3/answer4