K2CO3 (aq) + CaCl2 (aq) → CaCO3 (s) + 2 KCl (aq)

This is a precipitation reaction: CaCO3 is the formed precipitate.

Reactants:

  • K2CO3 – Potassium carbonate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Carbonate of potash source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Dipotassium carbonate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sub-carbonate of potash source: wikipedia, accessed: 2019-09-27
    • Appearance: White, hygroscopic solid source: wikipedia, accessed: 2019-09-27; Colourless hygroscopic crystals or hygroscopic white powder source: ICSC, accessed: 2019-09-04
  • CaCl2 – Calcium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Calcium(II) chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Calcium dichloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, E509 source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: White powder, hygroscopic source: wikipedia, accessed: 2019-09-27; Odourless hygroscopic colourless or white crystals source: ICSC, accessed: 2019-09-04

Products:

  • CaCO3 – Calcium carbonate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Calcite; aragonite; chalk; Lime (material); Limestone; marble; oyster; pearl; source: wikipedia, accessed: 2019-09-27, Calcium salt of carbonic acid source: wikidata, accessed: 2019-09-02, Children's Mylanta Upset Stomach Relief source: wikidata, accessed: 2019-09-02
    • Appearance: Fine white powder; chalky taste source: wikipedia, accessed: 2019-09-27; White powder or pellets source: ICSC, accessed: 2019-09-04
  • KCl
    • Names: Potassium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sylvite source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Muriate of potash source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: White crystalline solid source: wikipedia, accessed: 2019-09-27; Colourless hygroscopic crystals source: ICSC, accessed: 2019-09-04