
Balancing Chemical Equations
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Lucas Foster
FREE Resource
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial number of phosphorus atoms on the reactant side of the equation?
4
3
2
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it suggested to leave magnesium until last when balancing the equation?
Because it is more reactive
Because it appears alone on the reactant side
Because it is already balanced
Because it is a heavier element
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What coefficient is placed in front of Mg3P2 to balance the phosphorus atoms?
3
4
1
2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many magnesium atoms are needed on the reactant side to balance the equation?
2
4
8
6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced chemical equation?
6Mg + 2P4 → 2Mg3P2
Mg + P4 → Mg3P2
3Mg + 2P4 → Mg3P2
6Mg + P4 → 2Mg3P2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the product formed in the balanced equation?
Magnesium oxide
Magnesium phosphide
Magnesium sulfate
Magnesium chloride
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