Question

C-->CO2-->CaCO3-->H2CO3-->BaCO3

Answer 1

C + O2 = CO2
3CO2 + 2Ca = 2CaCO3
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Answer 2

The series of chemical reactions you provided is as follows:

C --> CO2 --> CaCO3 --> H2CO3 --> BaCO3

Let's break down each step:

1. C --> CO2: This reaction represents the combustion of carbon (C) to form carbon dioxide (CO2). It is a common reaction that occurs when carbon-containing substances, such as fossil fuels, are burned in the presence of oxygen.

2. CO2 --> CaCO3: This reaction involves the conversion of carbon dioxide (CO2) to calcium carbonate (CaCO3). It is a natural process that occurs in the Earth's atmosphere and bodies of water. Carbon dioxide dissolves in water, reacts with calcium ions (Ca2+), and forms insoluble calcium carbonate.

3. CaCO3 --> H2CO3: This reaction represents the formation of carbonic acid (H2CO3) from calcium carbonate (CaCO3). Carbonic acid is a weak acid that is formed when carbon dioxide dissolves in water.

4. H2CO3 --> BaCO3: This reaction involves the conversion of carbonic acid (H2CO3) to barium carbonate (BaCO3) by reacting with a barium (Ba2+) salt. This reaction is not a common or naturally occurring process, but it can be artificially induced in a laboratory setting.

It's important to note that the reactions you provided are a simplified representation of some chemical processes involving carbon and its compounds. In reality, these reactions can be influenced by various factors such as temperature, pressure, and the presence of catalysts or other reactants.