Write the equation for the following transformations C-CH4-CO-CO2-CaCO3-Ca (HCO3) 2

1) C + 2H2 → CH4 (Ni, t, p)
2) CH4 + H2O ⇄ CO + 3H2
3) 2CO + O2 → 2CO2
4) CO2+Ca(OH)2 → CaCO3 + H2O
5) CaCO3 + CO2 + H2O → Ca(HCO3)2



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