Balancing Chemical Equations Quiz
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary goal of stoichiometry in chemical reactions?
To destroy matter
To change the phases of substances
To create new elements
To balance chemical equations
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the Law of Conservation of Matter, what happens to matter during a chemical reaction?
It is transferred
It changes into energy
It is destroyed
It is created
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the reaction of hydrogen and oxygen to form water, why can't we simply add a subscript to balance the equation?
It decreases the pressure
It increases the temperature
It makes the reaction faster
It changes the chemical identity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using stoichiometry coefficients in balancing equations?
To change the chemical properties
To ensure the number of atoms is equal on both sides
To increase the reaction rate
To decrease the energy required
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When balancing a complex reaction, why is it helpful to use a checklist?
To increase the temperature
To speed up the reaction
To organize and ensure all atoms are accounted for
To change the phases of reactants
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the reaction of aluminum with oxygen, what is the least common multiple used to balance the oxygen atoms?
5
4
8
6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When balancing the reaction of methane with chlorine, why is it important to consider chlorine appearing in multiple products?
To decrease the reaction time
To balance the total number of chlorine atoms
To increase the yield of methane
To ensure the reaction is exothermic
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