Excess Reactant

A reactant that remains after a chemical reaction stops

• stoichiometry

• mole ratio

• excess reactant

• limiting reactant

Identify the limiting and excess reactants in the reaction shown.

• 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. 

Tags

NGSS.HS-PS1-7

This is what you call a reactant that you have enough of. The one that DOES NOT run out.

• Limiting Reactant

• Excess Reactant

• Highly Reactant

• Super Reactant

The excess reactant

• .
• is used up first
• is the reactant that is left over
• .

What is the term for a reactant that remains after a chemical reaction has stopped?

• Limiting reactant

• Excess reactant

• Catalyst

• Product

In a chemical reaction, which reactant is not completely consumed?

• Limiting reactant

• Excess reactant

• Intermediate

• Product

Which reactant determines the amount of product formed in a chemical reaction?

• Limiting reactant

• Excess reactant

• Catalyst

• Solvent

• Hydrogen

• Oxygen

• Water

• None

• It is completely used up

• It remains after the reaction

• It forms a new product

• It becomes a catalyst

Tags

NGSS.MS-PS1-5

Which of the following is true about the excess reactant in a chemical reaction?

• It limits the amount of product formed

• It is completely consumed

• It is left over after the reaction

• It speeds up the reaction