Free Printable BALANCING REDOX EQUATION

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BALANCING REDOX EQUATION

Total questions: 8

Worksheet time: 4mins

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Class

Date

Balance the following half-equations for reactions that occur in acidic solution :

Zn + VO²⁺ + H⁺ → V³⁺ + H₂O + Zn²⁺

Zn + 2VO²⁺ + 4H⁺ → Zn²⁺ + 2V³⁺ + 2H₂O

Zn + VO²⁺ + 4H⁺ → Zn²⁺ + V³⁺ + 2H₂O

Zn + 2VO²⁺ + 2H⁺ → Zn²⁺ + 2V³⁺ + H₂O

2Zn + 2VO²⁺ + 4H⁺ → Zn²⁺ + 2V³⁺ + 2H₂O

Balance the following half-equations for reactions that occur in acidic solution:

BrO₃⁻+ I⁻ → Br₂+ I₂

2BrO₃⁻+ 10I⁻ + 6H⁺ → Br₂ + 5I₂+ 3H₂O

2BrO₃⁻+ 10I⁻ + 12H⁺ → Br₂ + 5I₂+ 6H₂O

BrO₃⁻+ 10I⁻ + 14H⁺ → Br₂ + 5I₂+ 7H₂O

BrO₃⁻+ 5I⁻ + 12H⁺ → Br₂ + 3I₂+ 6H₂O

Balance the following redox equations for reactions that occur in neutral solution:

Fe³⁺ + I⁻ → Fe²⁺+ I_2.:

Fe³⁺ + 2I⁻ → Fe²⁺ + 2I₂

Fe³⁺ + I⁻ → Fe²⁺ + I₂

2Fe³⁺ + I⁻ → 2Fe²⁺ + I₂

2Fe³⁺ + 2I⁻ → 2Fe²⁺ + I₂

Balance the following redox equations for reactions that occur in neutral solution:

Zn + Ag+ → Zn²⁺ + Ag

Zn + 2Ag⁺ → Zn²⁺ + 2Ag

Zn + Ag⁺ → Zn²⁺ + Ag

Zn + 2Ag⁺ → Zn²⁺ + Ag

Zn+ Ag⁺ → 2 Zn²⁺+ 2Ag

WRITE THIS OUT ON PAPER, YOU MAY USE THE ANSWER TO THIS PROBLEM AGAIN IN ANOTHER QUESTION:

Balance the following reactions using the half-reaction method.

MnO₄⁻(aq) + H⁺(aq) + I⁻ (aq) → Mn²⁺(aq) + I₂(s)

How many electrons did you cross out on both side?

1 e^-

2 e^-

5 e^-

10 e^-

WRITE THIS OUT ON PAPER, YOU MAY USE THE ANSWER TO THIS PROBLEM AGAIN IN ANOTHER QUESTION:

Balance the following ACIDIC reactions using the half-reaction method.

MnO₄⁻(aq) + H⁺(aq) + I⁻ (aq) → Mn²⁺(aq) + I₂(s)

Water is a product of this reaction. What is the coefficient of water in the final balanced equation?

$MnO^-+C_2O_4^{2^-}=CO_2+MnO_2$
How many electrons are being transferred in Mn half reaction?

(a)

$Mn^{2^+}+BiO^{3^-}\rightarrow MnO^{4^-}+Bi^{3^+}$
How many electrons are transferred in the Mn half reaction?

(a)

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BALANCING REDOX EQUATION

Total questions: 8

Worksheet time: 4mins

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