Совершите такие преобразования 1) MgCO3-CO2-CaCO3-Ca(HCO3)2-CaCO3-Co2 2)...

$\textbf{1)} MgCO_{3} \xrightarrow{\text{\hspace{2mm}t\hspace{2mm}}} MgO + CO_{2} \uparrow$

$\textbf{2)} CO_{2} + CaO \longrightarrow CaCO_{3} \downarrow$

$\textbf{3)} CaCO_{3} + CO_{2} + H_{2}O \longrightarrow Ca(HCO_{3})_{2}$

$\textbf{4)} Ca(HCO_{3})_{2} \xrightarrow{\text{\hspace{2mm}t\hspace{2mm}}} CaCO_{3} \downarrow + CO_{2} \uparrow + H_{2}O$

$\textbf{5)} CaCO_{3} \xrightarrow{\text{\hspace{2mm}t\hspace{2mm}}} CaO + CO_{2} \uparrow$

$\textbf{1)} C + O_{2} \xrightarrow{\text{\hspace{2mm}t\hspace{2mm}}} CO_{2} \uparrow$

$\textbf{2)} CO_{2} + MgO \longrightarrow MgCO_{3} \downarrow$

$\textbf{3)} MgCO_{3} + CO_{2} + H_{2}O \longrightarrow Mg(HCO_{3})_{2}$

$\textbf{4)} Mg(HCO_{3})_{2} \xrightarrow{\text{\hspace{2mm}t\hspace{2mm}}} MgCO_{3} \downarrow + CO_{2} \uparrow + H_{2}O$