Question:
Complete and balance the following chemical equations:
Complete and balance the following chemical equations:
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- KMnO$_4$ decomposition is a key reaction in the production of oxygen in labs.
- Dichromate-Iodide reaction is a classic redox reaction where Cr$^{6+}$ is reduced, and I$^-$ is oxidized to I$_2$.
- Always balance chemical equations by ensuring both mass and charge conservation.
Updated On: Jan 13, 2026
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Solution and Explanation
Complete and Balanced Chemical Equations
(1) Thermal Decomposition of Potassium Permanganate: \[ 2KMnO_4 \xrightarrow{\text{heat}} K_2MnO_4 + MnO_2 + O_2 \] (2) Dichromate-Iodide Reaction: \[ Cr_2O_7^{2-} + 6I^- + 14H^+ \rightarrow 2Cr^{3+} + 3I_2 + 7H_2O \]
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