Question

CaO->Ca(NO3)2->CaCO->CaCl2->Ca(NO3)2​

Answer 1

Ответ:

CaO + 2HNO₃ = Ca(NO₃)₂ + H₂O

Ca(NO₃)₂  + K₂CO₃ = CaCO₃ + 2KNO₃

CaCO₃ + 2HCl = CaCl₂ + CO₂ + H₂O

CaCl₂  + 2AgNO₃ = Ca(NO₃)₂ + 2AgCl

Объяснение:

Answer 2

It seems like you're describing a series of chemical reactions involving various calcium compounds. Let's break down each step:

1. CaO -> Ca(NO3)2: In this step, calcium oxide (CaO) reacts with nitric acid (HNO3) to form calcium nitrate (Ca(NO3)2). The balanced chemical equation for this reaction is: CaO + 2HNO3 -> Ca(NO3)2 + H2O

2. Ca(NO3)2 -> CaCO: It appears there might be a typo in this step. You seem to be trying to convert calcium nitrate (Ca(NO3)2) into calcium carbonate (CaCO3). To do this, you would need to introduce a source of carbonate ions (CO3^2-) to precipitate calcium carbonate from the solution.

3. CaCO -> CaCl2: Again, there seems to be a typo or confusion here. Calcium carbonate (CaCO3) typically doesn't directly react with calcium chloride (CaCl2) under normal conditions. They are two distinct compounds.

4. CaCl2 -> Ca(NO3)2: It appears you want to convert calcium chloride (CaCl2) back into calcium nitrate (Ca(NO3)2). To do this, you would need to replace the chloride ions (Cl-) in calcium chloride with nitrate ions (NO3-). This could be achieved through a double displacement reaction with a soluble nitrate salt.

Please provide more specific information or clarification if you have a particular chemical reaction or scenario in mind, and I'll be happy to help further.