Chlorine has a density of 0.03 g/cm3 and bromine has a density of 3.12 g/cm3. A student makes a comment about the densities

mass-of-chlorine

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Chlorine has a density of 0.03 g/cm3 and bromine has a density of 3.12 g/cm3. A student makes a comment about the densities. “The difference in molecular mass of chlorine and bromine is not enough to account for the difference in densities.” Explain why the student is correct.

Answer:

Ok, now you are referring to the difference in their physical states. The chlorine is in gaseous state at room temperature, while the bromine is in the liquid state.