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1. Which would have a higher surface tension, H2O or C6H14? Why? Would the shape of the H2O meniscus in a glass tube be the same or different than C6H14?

2. Does Fe form a molecular solid or an atomic solid? Explain.

3. Why is molality used in the equations describing freezing-point depression and boiling-point elevation? Explain in detail and explain the reason why molarity is nto used.

4. Predict with substance would be more soluble in water, NH3 or PH3. Explain your choice.

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