Balancing Chemical Equations Practice
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Aiden Montgomery
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial chemical equation discussed in the video?
Magnesium sulfate plus barium chloride yields barium sulfate plus magnesium chloride
Calcium carbonate plus hydrochloric acid yields calcium chloride plus carbon dioxide
Sodium chloride plus silver nitrate yields silver chloride plus sodium nitrate
Lead nitrate plus potassium iodide yields potassium nitrate plus lead iodide
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many nitrate ions are initially present on the reactant side?
Two
One
Three
Four
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What adjustment is made to balance the nitrate ions?
Add a coefficient of 3 in front of KI
Add a coefficient of 2 in front of Pb(NO3)2
Add a coefficient of 3 in front of PbI2
Add a coefficient of 2 in front of KNO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After balancing the nitrates, what is the next element to be balanced?
Lead
Iodine
Potassium
Oxygen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What coefficient is added in front of KI to balance the potassium atoms?
4
1
2
3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many iodine atoms are present on the product side after balancing?
Three
One
Four
Two
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced chemical equation?
Pb(NO3)2 + KI → KNO3 + PbI2
Pb(NO3)2 + KI → 2KNO3 + PbI2
Pb(NO3)2 + 2KI → 2KNO3 + PbI2
2Pb(NO3)2 + KI → KNO3 + 2PbI2
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