When you combine 0.10M potassium carbonate and 0.05M chromium nitrate does it cause a chemical reaction ? and why ?

Question

Need this for a chemistry report

both were liquids and added vertically

Answer 1

Potassium carbonate = K₂CO₃

Chromium(II) nitrate = Cr(NO₃)₂

When these two are combined a reaction DOES take place because one of the products is insoluble chromium carbonate. This appears as a precipitate indicating a chemical reaction has taken place.

K₂CO₃(aq) + Cr(NO₃)₂(aq) ==> 2KNO₃(aq) + CrCO₃(s)