Question

Осуществите цепочку превращений CaCo3 -CaCI2 - Ca(OH)2

Answer 1

CaCO3+2HCl=CaCl2+CO2+H2O
CaCl2+2kOH=Ca(OH)2+2KCl

Answer 2

Chain of Transformations: CaCO3 - CaCl2 - Ca(OH)2

The chain of transformations for the compound CaCO3 to CaCl2 and then to Ca(OH)2 can be achieved through a series of chemical reactions. Here is the step-by-step process:

1. CaCO3 to CaCl2: - CaCO3 reacts with hydrochloric acid (HCl) to form calcium chloride (CaCl2) and carbon dioxide (CO2) gas. - The balanced equation for this reaction is: CaCO3 + 2HCl → CaCl2 + CO2 + H2O.

2. CaCl2 to Ca(OH)2: - CaCl2 reacts with sodium hydroxide (NaOH) to form calcium hydroxide (Ca(OH)2) and sodium chloride (NaCl). - The balanced equation for this reaction is: CaCl2 + 2NaOH → Ca(OH)2 + 2NaCl [[1]](https://uchi.ru/otvety/questions/reshite-tsepochku-prevrascheniy-ca-ca-oh-2-caco3-cao-cacl2-ca-t-bao-ba-oh-2-ba-no3-2-nano).

Therefore, the complete chain of transformations is: CaCO3 → CaCl2 → Ca(OH)2.

Please note that these reactions are simplified representations and may not account for all possible reaction conditions or side reactions.