What is the initial chemical equation discussed in the video?

Balancing Chemical Reactions and Ions

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Chemistry
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9th - 10th Grade
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Hard

Ethan Morris
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pb(NO3)2 + Mg
C6H12O6 + O2
NaCl + H2O
H2O + CO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of NO3 in the chemical reaction?
It is a catalyst.
It is a polyatomic ion that stays together.
It is a single atom.
It is a product of the reaction.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many nitrate ions are present in the initial equation?
Four
Three
Two
One
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of counting polyatomic ions as one unit when balancing equations?
It simplifies the balancing process.
It makes the process more complex.
It has no effect on the balancing process.
It increases the number of steps required.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced equation for the reaction?
Pb(NO3)2 + Mg → Pb + Mg
Pb(NO3)2 + Mg → Pb(NO3)2 + Mg
Pb(NO3)2 + Mg → Mg + Pb(NO3)2
Pb(NO3)2 + Mg → Pb + Mg(NO3)2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to balance chemical equations?
To increase the temperature of the reaction.
To comply with the law of conservation of mass.
To ensure the reaction is fast.
To make the reaction more colorful.
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