African-Americans were represented at every level of government.

A solution of I2 is needed for an experiment and the following solvents are available. Which is the best solvent for I2 CH3OH, H2O, CCl4, CH2Cl2

Which of the following terms refers to the resistance of a liquid spread?

From the following list of aqueous solutions , select the one with the highest boiling point . [Boiling point of water is 100.0 oC, Kb for water is 0.51 and ΔTb = Kb * m * i ]

Determine the vapor pressure of a solution at 55°C that contains 34.2 g NaCl in 375 mL of water. The vapor pressure of pure water at 55°C is 118.1 torr. The van’t Hoff factor for NaCl is 1.9. [Psolution = Xsolvent * Psolvent]

Which of the following statements describe the correct method of preparation of 1.00 L of a 3.0 m (molal) urea solution? (molar mass of urea = 60.06 g/mol)

The freezing points of three solutions of glucose in water are shown below. Arrange the solutions in the order of decreasing (highest to lowest) molal concentration.(i)−1.45∘C; (ii) −5.96∘C; (iii) −3.04∘C

Who won the disputed election and bargain of 1877?

Victorious Southern Democrats referred to themselves as “Redeemers” because they wanted to redeem the country back to the way “it used to be” before the Civil War. 

Nitrogen gas can be condensed to liquid nitrogen until high pressures and very low temperatures.  Liquid nitrogen is used as a coolant in labs routinely.  Nitrogen gas condenses due to _________________________.