Limiting Reactants

You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich.  If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, what is the limiting reactant?

• bread

• jelly

• peanut butter

• sandwich

You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich. If you have 10 pieces of bread, 10 tablespoons of peanut butter and 20 tablespoons of jelly, what is the limiting reactant?

• bread

• jelly

• peanut butter

• sandwich

When 6 moles of O₂ reacts with 2 moles of H₂ what is the limiting reactant? 2 H₂ + 6 O₂ --> 2 H₂O

• Oxygen

• H₂

• Water

Tags

NGSS.HS-PS1-7

When 6 moles of O₂ reacts with 12 moles of H₂ what is the limiting reactant? 12 H₂ + 6 O₂ --> 12 H₂O

• Oxygen

• H₂

• Water

• Neither, Ratios are perfect

Tags

NGSS.HS-PS1-7

When 2 moles of O₂ reacts with 3 moles of H₂ what is the limiting reactant? 3 H₂ + 2 O₂ --> 2 H₂O

• Oxygen

• H₂

• Water

• Neither, Ratios are perfect

Tags

NGSS.HS-PS1-7

It is the reactant that produces a lesser amount of product. (a)  

• Excess Reactant

• Percent Yield

• Limiting Reactant

• Co-Factor

It is the maximum amount of product you would expect from a reaction based on the amount of limiting reagent (a)  

• Theoretical yield

• Limiting Reactant

• Excess Reactant

• Product Difference

Tags

NGSS.HS-PS1-7

In a chemical reaction, you have 5 moles of A and 10 moles of B. The reaction requires 1 mole of A for every 2 moles of B. What is the limiting reactant?

• A

• B

• Neither, the ratios are perfect

• Both are limiting

You are conducting an experiment with 8 moles of hydrogen and 5 moles of oxygen. The reaction is given by @@ ext{2H}_2 + ext{O}_2 ightarrow ext{2H}_2 ext{O}@@. What is the limiting reactant?

• Hydrogen

• Oxygen

• Water

• None

In a reaction between nitrogen and hydrogen to form ammonia, you have 3 moles of nitrogen and 9 moles of hydrogen. The balanced equation is @@ ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@. What is the limiting reactant?

• Nitrogen

• Hydrogen

• Ammonia

• None

Tags

NGSS.HS-PS1-7