Limiting and Excess Reactant

The reactant that is not completely consumed during a reaction

None of this reactant is left over after the reaction take place

The reactant that is completely consumed during the reaction

Some of this reaction is left over after the reaction

The reactant that is not completely consumed during a reaction

None of this reactant is left over after the reaction take place

The reactant that is completely consumed during the reaction

Some of this reaction is left over after the reaction

N₂ is limiting and H₂ is excess. 

H₂ is limiting and N₂ is excess. 

NH₃ is both limiting and excess.

There is no limiting reactant. 

Fe is limiting and S is excess.

S is limiting and Fe is excess.

FeS is both limiting and excess.

There is no limiting or excess reactants.

Three ammonia molecules are formed, with zero molecules remaining.

Two ammonia molecules are formed, with two hydrogen molecules remaining.

Six ammonia molecules are formed, with zero molecules remaining.

Two ammonia molecules are formed, with two nitrogen molecules remaining.