Na₂SiO₃ + 2HI = 2NaI + H₂SiO₃↓
2Na⁺ + SiO₃²⁻ + 2H⁺ + 2I⁻ = 2Na⁺ + 2I⁻ + H₂SiO₃↓
SiO₃²⁻ + 2H⁺ = H₂SiO₃↓
K₂CO₃+ 2HNO₃ = 2KNO₃ + CO₂ + H₂O
2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + CO₂↑ + H₂O
CO₃²⁻ + 2H⁺ = CO₂↑ + H₂O
