Final answer:
Calcium chloride and potassium chromate react to form calcium chromate, a solid precipitate, and potassium chloride in aqueous form. This is a double displacement reaction and is an example of a precipitation reaction.
Step-by-step explanation:
The reaction between calcium chloride and potassium chromate results in the formation of calcium chromate and potassium chloride. This is a type of double displacement reaction, where the cations of the two reactants switch places. The balanced chemical equation for this reaction is:
CaCl2 (aq) + K2CrO4 (aq) → CaCrO4 (s) + 2 KCl (aq)
Calcium chromate (→ CaCrO4) will precipitate out of the solution as a solid, while potassium chloride (KCl) will remain in aqueous form. The formation of a precipitate is indicative of a precipitation reaction, similar to when potassium chromate reacts with silver nitrate to form silver chromate (Ag2CrO4). It is important to note that soluble salts can dissociate in solution, but only certain combinations of ions will react to form a precipitate.