You are now at the electrolysis Boss Level. Master cathode reduction, halide oxidation, and the legendary OH⁻ → O₂ equation that every examiner loves to test.
⬇️
Cathode
Mⁿ⁺ + ne⁻ → M
⚡
Halide Anode
2X⁻ → X₂ + 2e⁻
👑
OH⁻ Anode
4OH⁻ → 2H₂O + O₂ + 4e⁻
Step 1 — Load the Reactants
We start with 4 hydroxide ions (OH⁻) on the LEFT side of the anode.
Left side has 4 negative charges. Right is empty.
🧪 NEVER FORGET: OIL RIG
OIL
Oxidation Is Loss
of electrons
Happens at the ANODE
RIG
Reduction Is Gain
of electrons
Happens at the CATHODE
Sign In to Keep Going
You've reached the end of the free preview. Sign in — and upgrade to Plus or Pro — to keep going with Chemistry.