Which of the following reaction mixtures could produce the greatest amount of product? Each involved the reaction symbolised by the equation: 2H₂ + O2 → 2H₂O
1) 2 moles of H₂ and 2 moles of O2
2) 2 moles of H₂ and 3 moles of O2
3) 2 moles of H₂ and 1 mole of O2
4) 3 moles of H₂ and 1 mole of O2
5) Each produce the same amount of product