Question

С какими веществами реагирует хлорид кальция, если получается:а) сульфат кальция. б) карбонат кальция. в) ортофосфат кальция. г) гидроксид кальция. д) хлороводород. Написать уравнение реакции и пояснить, почему они идут до конца.

Answer 1

а)СaCl2 + H2SO4 = CaSO4 + 2HCl

б)CaCl2 + FeCO3 = CaCO3 + FeCl2

в)сам не знаю :)

г)CaCl2 + 2NaOH =  Ca(OH)2 + 2NaCl

д) реакция "а" сюда подойдет.

Наверное все верно)

Answer 2

Reactivity of Calcium Chloride with Various Substances

a) With Calcium Sulfate: Calcium chloride reacts with calcium sulfate to form calcium chloride and sodium sulfate. The balanced chemical equation for this reaction is: ``` CaCl2 + Na2SO4 → 2NaCl + CaSO4 ``` This reaction occurs because calcium chloride and sodium sulfate exchange ions to form the products. The reaction proceeds to completion due to the high solubility of sodium chloride and calcium sulfate in water, driving the reaction forward.

b) With Calcium Carbonate: When calcium chloride reacts with calcium carbonate, it forms calcium chloride, carbon dioxide, and water. The balanced chemical equation for this reaction is: ``` CaCl2 + CaCO3 → CaCl2 + CO2 + H2O ``` This reaction proceeds to completion due to the formation of a highly soluble product (calcium chloride) and the release of a gas (carbon dioxide), which drives the reaction forward.

c) With Calcium Orthophosphate: Calcium chloride does not react with calcium orthophosphate. The two substances remain as separate entities without undergoing a chemical reaction.

d) With Calcium Hydroxide: When calcium chloride reacts with calcium hydroxide, it forms calcium chloride and sodium hydroxide. The balanced chemical equation for this reaction is: ``` CaCl2 + 2NaOH → 2NaCl + Ca(OH)2 ``` This reaction proceeds to completion due to the high solubility of sodium chloride and calcium hydroxide in water, driving the reaction forward.

e) With Hydrochloric Acid: Calcium chloride does not react with hydrochloric acid. They remain as separate entities without undergoing a chemical reaction.

In summary, the reactivity of calcium chloride with different substances results in various chemical reactions, with some reactions proceeding to completion due to the formation of highly soluble products or the release of gases that drive the reactions forward.

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