To a 2.00-L flask, 2.00 mol each of H2and I2is added. The Kcfor this reaction is 55.3. Determine the equilibrium concentrations of all chemical species at room temperature.

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Explanation:

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.