Question

С=СО2=СаСО3=СаСl2=CaCo3

Answer 1

1)С+О2 =СО2
2)  CO2 +CaO=CaCO3.
3) СаСО3 + 2HCl = СаСl2 + H2O + СO2
4)  CaCl2 + Na2CO3 = 2NaCL + CaCO3  (осадок)

Answer 2

The statement you provided appears to be a series of chemical equations involving different compounds. Let's break it down and examine each equation individually:

1. C = CO2: This equation represents the conversion of carbon (C) to carbon dioxide (CO2). The reaction is commonly known as combustion, where carbon reacts with oxygen to form carbon dioxide.

2. CO2 = CaCO3: This equation represents the reaction between carbon dioxide (CO2) and calcium carbonate (CaCO3). In this reaction, carbon dioxide reacts with calcium carbonate to form calcium oxide (CaO) and carbon dioxide. This reaction is known as thermal decomposition.

3. CaCO3 = CaCl2: This equation suggests the conversion of calcium carbonate (CaCO3) to calcium chloride (CaCl2). However, this equation is not accurate. Calcium carbonate and calcium chloride are different compounds, and there is no direct conversion between them.

4. CaCl2 = CaCO3: This equation suggests the conversion of calcium chloride (CaCl2) to calcium carbonate (CaCO3). Again, this equation is not accurate. Calcium chloride and calcium carbonate are different compounds, and there is no direct conversion between them.

To summarize, the equations you provided have inaccuracies, and some of them do not represent valid chemical reactions. If you have any specific questions or if there's something else you would like to know, please let me know, and I'll be happy to help!