MgCl₂ (aq) + K₂CO₃ (aq) → MgCO₃ (s) + 2 KCl (aq)

This is a precipitation reaction: MgCO₃ is the formed precipitate.

Reactants:

• MgCl₂
  • Names: Magnesium chloride , Magnesium dichloride , Magnesium chloride anhydrous ... show moreMgCl2 , [MgCl2] show less
  • Appearance: White or colourless crystalline solid ; Deliquescent white solid in various forms
• K₂CO₃ – Potassium carbonate
  • Other names: Carbonate of potash , Dipotassium carbonate , Sub-carbonate of potash ... show morePearl ash , Potash , Salt of tartar , Salt of wormwood. , Potassium carbonate (anhydrous) , K2CO3 , Carbonic acid, dipotassium salt , Potassium carbonate, anhydrous , Kaliumcarbonat , Potash, sulfurated show less
  • Appearance: White, hygroscopic solid ; Colourless hygroscopic crystals or hygroscopic white powder

Products:

• MgCO₃
  • Names: Magnesium carbonate , Magnesite , Barringtonite (dihydrate) ... show moreNesequehonite (trihydrate) , Lansfordite (pentahydrate) , Magnesiumkarbonat , MgCO3 , Magnesium carbonate anhydrous , Carbonic acid, magnesium salt , Carbonate magnesium , Hydromagnesite , Magnesium(II) carbonate , [Note: Magnesite is a naturally-occurring form of magnesium carbonate.] show less
  • Appearance: White solid | hygroscopic ; White powder ; White, odorless, crystalline powder.
• KCl
  • Names: Potassium chloride , Sylvite , Muriate of potash ... show moreKlor-Con M15 , K-Lease , Klor-Con 8 , K+10 , K+8 , Klor-Con M10 , Micro-K 10 , Kato , Kaon Cl-10 , Kaon-Cl , Kaon Cl , Micro-K , Klor-Con 10Meq , Klor-Con 10 , Micro-K Ls , K-dur , Klor-Con , Klor-Con M20 , Slow-K , Ten-K , Klotrix , [KCl] , Kaliumchlorid , Chloride of potash , Kaon-CL 10 , Klor-CON , KCl , Monopotassium chloride , K-Tab , Chlorid draselny , Potassium Chloride show less
  • Appearance: White crystalline solid ; Colourless hygroscopic crystals