Question

CO -> CO2 -> CaCO3 -> H2CO3

Answer 1

2CO+O2->2CO2

CaCO3->CaO+CO2

CaCO3+2H2O->H2CO3+Ca(OH)2

Answer 2

The sequence you provided represents the chemical transformations of carbon monoxide (CO) into carbon dioxide (CO2), then into calcium carbonate (CaCO3), and finally into carbonic acid (H2CO3). Let's break down each step:

1. CO -> CO2: Carbon monoxide (CO) reacts with oxygen (O2) to form carbon dioxide (CO2) in a combustion reaction: 2CO + O2 -> 2CO2

2. CO2 -> CaCO3: Carbon dioxide (CO2) can undergo a process called mineral carbonation, where it reacts with certain minerals to form solid carbonates. One such mineral is calcium oxide (CaO), which can react with CO2 to form calcium carbonate (CaCO3): CaO + CO2 -> CaCO3

3. CaCO3 -> H2CO3: Calcium carbonate (CaCO3) can dissolve in water (H2O) and react with it to form carbonic acid (H2CO3): CaCO3 + H2O -> H2CO3 + Ca2+ + CO32-

It's important to note that carbonic acid (H2CO3) is unstable and readily decomposes into water (H2O) and carbon dioxide (CO2): H2CO3 -> H2O + CO2

This sequence represents some of the chemical transformations involving carbon monoxide, carbon dioxide, calcium carbonate, and carbonic acid.