SiO₂ + Na₂CO₃ → Na₂SiO₃ + CO₂

This is an acid-base reaction (neutralization): SiO₂ is an acid, Na₂CO₃ is a base.

Reactants:

• SiO₂
• Na₂CO₃ – Sodium carbonate
  • Other names: Soda ash , Washing soda , Soda crystals ... show moreSodium carbonate (anhydrous) , Na2CO3 , Disodium carbonate , Natriumkarbonat , Carbonic acid sodium salt (1:2) , Anhydrous sodium carbonate , Carbonic acid, disodium salt , Sodium carbonate, anhydrous , Soda-ash , Natrum carbonicum , Sodium carbonate anhydrous , Sodium salt of carbonic acid , Carbonic acid disodium salt show less
  • Appearance: White solid, hygroscopic ; White hygroscopic powder

Products:

• Na₂SiO₃
  • Names: Sodium metasilicate , Sodium metasilicate (anhydrous) , Sodium sesquisilicate ... show moreSodium silicate glass , Sodium polysilicate , Sodium siliconate , Silicic acid, sodium salt , Disodium metasilicate , Disodium trioxosilicate show less
  • Appearance: Colourless-to-white hygroscopic solid in various forms
• CO₂
  • Names: Carbon dioxide , {{plainlist| , CO2 ... show moreCarbonic acid gas , Dry ice , [CO2] , Carbonic anhydride , R-744 , E-290 , E 290 , E290 , Carbonic acid anhydride , Carbon-12 dioxide , Methanedione , Carbon oxide , CO₂ , [Note: Normal constituent of air (about 300 ppm)]. show less
  • Appearance: Colorless gas ; Odourless colourless compressed liquefied gas ; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.]