12. How many molecules of ammonia are produced from the reaction of 9.5 * 1023 molecules of nitrogen are reacted with excess hydrogen gas? N2 + 3H2 → 2NH3
O 2.9 10% molecules NH3
O 1.9 * 1024 molecules NH3
O 2 molecules NH3
O 9.5 * 1023 molecules NH3