Redox Reactions Around Us

Reaksi Redoks di Sekitar Kita

1. Corrosion of Iron Metal

The rusting prosses in iron can be written in the following equation.

Fe(s) + O2(aq) + H2O(l) → Fe2O3.3H2O(l)4 3 6 20 0 +3 -2

OXIDATIONREDUCTION

2. Clothes Bleaching

When NaOCl dissolved, it is dissociated into ions, Na+ and OCl-, OCl- ion is reduced into chlorine ion and hydroxide ion

NaOCl + H2O → NaCl + NaOH+ O2+ Cl226 42 2+1 -1 0

4

3. The Accumulator Electrocuting

Pb + PbO2 + H2SO4 PbSO4 + H2O

4. Redox Reaxtion in Metals Extraction

2 2 2

Fe2O3Fe2O3 + CO → Fe + CO23 2 3

SiO2(s) + C(s) → Si(s) + CO(g)22