In a reaction in which hydrogen reacts with oxygen to produce water, which substances are the reactants?
a. hydrogen only
b. water
c. oxygen only
d. both hydrogen and oxygen
When 75.0 g NH3, 90.0 g CO2, and 61.0 g H2O are reacted to form (NH4)2CO3, the limiting reactant is:
a. H2O
b. NH3
c. CO2
d. (NH4)2CO3