Appearance: White powder ; Colourless crystals or white powder ; White, odorless powder. [Note: Readily absorbs CO2 from the air to form calcium carbonate.]
NaHCO3 – Sodium hydrogen carbonate
Other names: Sodium bicarbonate, Baking soda, Bicarb (laboratory slang)
Appearance: White crystals ; White solid in various forms
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CaCO3 – Calcium carbonate
Other names: Calcite; aragonite; chalk; Lime (material); Limestone; marble; oyster; pearl;, Calcium salt of carbonic acid, Children's Mylanta Upset Stomach Relief
Appearance: Fine white powder; chalky taste ; White powder or pellets
NaOH
Names: Sodium hydroxide, Caustic soda, Lye
Appearance: White, waxy, opaque crystals ; White hygroscopic solid in various forms ; Colorless to white, odorless solid (flakes, beads, granular form).
H2O – Water, oxidane
Other names: Water (H2O), Hydrogen hydroxide (HH or HOH), Hydrogen oxide
Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
2 + NaHCO3 → CaCO3 + NaOH + H2O – Balanced equation){kind=link}