In a basic solution, the balanced redox reaction is Zn + 4OH⁻ + 2H₂O → Zn(OH)₄²⁻ + 2H₂, ensuring conservation of atoms and charges.
To balance the redox reaction Zn + Zn(OH)₄²⁻ + H₂ in a basic solution, we follow these steps:
1. Write the Unbalanced Equation: Zn + Zn(OH)₄²⁻ + H₂ → ?
2. Assign Oxidation States: Identify the oxidation states of each element. Zinc (Zn) goes from 0 to +2, and hydrogen (H) goes from +1 to 0.
3. Write Half-Reactions:
- Oxidation Half-Reaction: Zn → Zn²⁺
- Reduction Half-Reaction: 2H₂O + H₂ → 2OH⁻
4. Balance Atoms: Balance the number of atoms in each half-reaction.
5. Balance Charges: Add electrons to one side to balance the charges in each half-reaction.
6. Make Electrons Equal: Multiply the half-reactions to make the number of electrons equal.
7. Combine Half-Reactions: Add the balanced half-reactions together.
8. Simplify and Check: Ensure that the equation is balanced in terms of atoms and charges.
The balanced redox reaction in basic solution is:
Zn + 4OH⁻ + 2H₂O → Zn(OH)₄²⁻ + 2H₂
The question probable may be;
What is the balanced redox reaction in a basic solution for the given equation: Zn + Zn(OH)₄²⁻ + H₂ → ?