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Balancing Redox Reactions: Half Reaction Method Explained

Balancing Redox Reactions: Half Reaction Method Explained

Assessment

Interactive Video

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Aiden Montgomery

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a neutral solution, how many electrons are needed to balance the half-reaction where aluminum becomes Al+3?

Two electrons

Three electrons

Four electrons

Six electrons

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the half-reaction method in redox reactions?

To ensure only the reactants are balanced

To identify the type of reaction

To balance both atoms and charges in the reaction

To change the reaction conditions

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the least common multiple of electrons needed to balance the half-reactions in a neutral solution example?

Nine

Six

Three

Two

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Under acidic conditions, what additional substances are used to balance redox reactions?

Sulfate ions

Nitrate ions

Hydroxide ions

Water and H+ ions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many electrons are added to the left side in the acidic condition example involving bromate and zinc?

Two electrons

Four electrons

Six electrons

Eight electrons

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final charge balance on both sides of the equation in the acidic example?

Negative five

Zero

Positive five

Negative one

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In basic conditions, what is added to both sides to neutralize H+ ions?

Sulfate ions

Water molecules

Electrons

Hydroxide ions

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