
Balancing Chemical Reactions and Ions
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Emma Peterson
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of reaction occurs when sodium carbonate reacts with magnesium sulfate?
Decomposition reaction
Synthesis reaction
Double displacement reaction
Single displacement reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the trick mentioned to simplify balancing chemical equations?
Ignoring all ions
Counting polyatomic ions as single units
Balancing only the metals
Using a calculator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many sodium atoms are present on the reactant side of the equation?
One
Four
Three
Two
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the carbonate ion in the reaction?
Variable
Neutral
Negative
Positive
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many magnesium atoms are present on the product side of the equation?
One
Three
Four
Two
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it easier to balance equations by counting polyatomic ions as single units?
It is only applicable to synthesis reactions
It reduces the number of items to balance
It increases the complexity
It changes the chemical properties
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced equation for the reaction between sodium carbonate and magnesium sulfate?
Na2CO3 + MgSO4 → Na2SO4 + MgCO3
Na2CO3 + MgSO4 → NaMg + CO3SO4
Na2CO3 + MgSO4 → Na2Mg + CO3SO4
Na2CO3 + MgSO4 → Na2CO3 + MgSO4
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