
Balancing Chemical Equations

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Emma Peterson
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial count of magnesium atoms on both sides of the equation?
One on the reactant side, two on the product side
One on both sides
Two on the reactant side, one on the product side
Two on both sides
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which atoms are initially unbalanced in the equation?
Magnesium and hydrogen
Oxygen and chlorine
Hydrogen and chlorine
Magnesium and oxygen
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of placing a coefficient in front of HCl?
To increase the number of magnesium atoms
To decrease the number of chlorine atoms
To balance the oxygen atoms
To balance the hydrogen and chlorine atoms
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are there on the product side after balancing?
One
Four
Two
Three
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced equation for the reaction?
MgO + 2HCl → MgCl + H2O
MgO + HCl → MgCl2 + H2
MgO + HCl → MgCl + H2O
MgO + 2HCl → MgCl2 + H2O
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