
Limiting Reactants and Percent Yield

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Chemistry, Science
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9th - 12th Grade
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Aiden Montgomery
Used 31+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a limiting reactant in a chemical reaction?
The reactant that does not participate in the reaction
The reactant that is completely used up first
The reactant that is left over after the reaction
The reactant that is in excess
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the hydrogen combustion example, what was the limiting reactant?
Carbon dioxide
Water
Hydrogen gas
Oxygen gas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the combustion of methane, what happens to the excess oxygen?
It forms additional water molecules
It remains unreacted
It forms carbon monoxide
It reacts with nitrogen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in determining the limiting reactant in a reaction?
Identify the products
Calculate the percent yield
Balance the chemical equation
Convert masses to moles
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to identify the limiting reactant in a chemical reaction?
To balance the chemical equation
To predict the amount of product formed
To calculate the reaction rate
To determine the amount of excess reactant
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the predicted yield in a chemical reaction?
The amount of reactant used
The amount of reactant left over
The actual amount of product obtained
The amount of product expected if all reactants react completely
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is percent yield calculated?
Predicted yield minus actual yield, divided by predicted yield
Actual yield divided by predicted yield, multiplied by 100
Actual yield plus predicted yield, divided by 2
Predicted yield divided by actual yield, multiplied by 100
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