AlCl₃ + 3KOH = Al(OH)₃↓ + 3KCl<span> Al³</span>⁺ + 3Cl⁻ + 3K⁺ + 3OH⁻ = Al(OH)₃↓ + 3K⁺ + 3Cl⁻<span> Al³</span>⁺ + 3OH⁻ = Al(OH)₃<span>↓</span>
с6н5сон + cl2 = c6h5cohcl + hcl