2c2h2 + 5o2 → 4co2 + 2h2o
which reactant will be in excess, and how many moles of it will be left over?

Try to reduce the amount of leftover ingredients by changing the amount of one, two, or all three starting ingredients. show your stoichiometric calculations below. water 946.36 g sugar 196.86 g lemon juice193.37 g