What is the first step in balancing a redox reaction?

Balancing Redox Reactions Concepts

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

Mia Campbell
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Add water to balance oxygen
Write the balanced equation
Add electrons to balance charge
Determine the oxidation numbers of elements
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the given reaction, what is the oxidation number of bromine in Br2?
+1
-1
0
+5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following describes a reduction process?
Increase in oxidation number
Decrease in oxidation number
Addition of oxygen
Loss of electrons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of writing half-reactions in redox balancing?
To separate oxidation and reduction processes
To balance the equation quickly
To identify spectator ions
To determine the final product
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you balance oxygen atoms in a redox reaction?
By adding H+ ions
By adding OH- ions
By adding electrons
By adding H2O molecules
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be equal in both half-reactions before combining them?
Number of ions
Number of atoms
Number of electrons
Number of molecules
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to simplify the coefficients in the final balanced equation?
To make the equation look neat
To ensure the equation is in its simplest form
To reduce calculation errors
To match the original equation
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