Write the reaction equations in accordance with the transformation chain: CH4-CO2-H2CO3

A chain of transformation of substances is given: CH4 => CO2 => H2CO3. 1) CH4 + 2O2 = CO2 (CO2 – gas, up arrow) + 2H2O 2) CO2 + H2O = H2CO3 (the reaction is reversible, i.e. the arrows are directed to both sides of the reaction).



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