Equation 6. C + 2H2SO4 -> CO2 + 2H2SO4

  1. The chemical equation above is not correct. It has the same substance appearing on both sides of the equation, which is H2SO4. A plausible equation could be: C + H2SO4 -> CO2 + H2O + SO2.

  2. Reaction condition: This reaction takes place at high temperatures.

  3. Reaction process:

    • Initially, coal (C) reacts with sulfuric acid (H2SO4) to produce carbon dioxide (CO2), water (H2O), and sulfur dioxide (SO2).
    • C + H2SO4 -> CO2 + H2O + SO2

  4. Observable phenomena: When the reaction occurs, you can see the emission of CO2 and SO2 gases. CO2 is a colorless, odorless, non-flammable gas, while SO2 is a pale yellow gas with a distinctive odor and is a strong oxidizer.

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