What is a limiting reagent in a chemical reaction?
Limiting Reactant Quiz

Quiz
•
Chemistry
•
12th Grade
•
Hard
Ernie Santoyo
Used 1+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
The reactant that is completely consumed and determines the amount of product formed.
The reactant that is left over after the reaction is complete.
The catalyst that speeds up the reaction.
The product that forms in the largest quantity.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In the reaction 2mol H2+ 1mol O2→2mol H2O, if you have 10 moles of H2 and 8 moles of O2, which is the limiting reactant?
H2
O2
H2O
Both H2 and O2
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
How can you identify the excess reactant(s) in a reaction?
It's the reactant that is completely consumed.
It's the reactant that remains after the reaction is complete.
It's always the reactant with the larger coefficient in the balanced equation.
It's always the reactant with the smaller coefficient in the balanced equation.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In a reaction where aluminum reacts with oxygen to form aluminum oxide
4mol Al + 3mol O2 → 2mol Al2O3,
54 grams of aluminum reacts with 48 grams of oxygen. Which statement is true?
Al = 27 g/mol
O = 16g/mol
Aluminum is the limiting reactant.
Oxygen is the limiting reactant.
Both reactants are completely consumed.
The reaction cannot occur as written.
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
What will happen to the reaction when the limiting reactant is depleting?
The reaction will not continue.
The reaction will stop.
The reaction remains.
Cannot be determined.
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