Stoichiometry and Chemical Reactions
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main goal of the stoichiometry problem discussed in the video?
To determine the color of magnesium oxide
To measure the temperature of the reaction
To find the limiting reagent, theoretical yield, and percent yield
To calculate the speed of the reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it necessary to balance the chemical equation before solving the stoichiometry problem?
To increase the reaction rate
To ensure the conservation of mass
To make the equation look neat
To ensure the reaction is safe
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of magnesium used in the calculations?
24.31 grams per mole
16.00 grams per mole
31.99 grams per mole
40.31 grams per mole
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of magnesium oxide are theoretically produced from 10.1 grams of magnesium?
11.9 grams
16.7 grams
10.5 grams
26.4 grams
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of oxygen used in the calculations?
24.31 grams per mole
31.99 grams per mole
40.31 grams per mole
16.00 grams per mole
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of magnesium oxide are theoretically produced from 10.5 grams of oxygen?
10.5 grams
26.4 grams
16.7 grams
11.9 grams
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which reactant is the limiting reagent in the reaction?
Magnesium
Oxygen
Magnesium oxide
None of the above
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