One disadvantage of vacuum distillation is it is inherently less efficient than fractional distillation at atmospheric pressure.

a. True

b. False

How does wind effect precipitation

Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. Calculate the pH of a HNO3 solution having a hydrogen ion concentration of 0.71 M.

How many hydrogen atoms are present in 5.00 mg of aspartame?

For questions #14 - 17, write an equation for the reaction of magnesium chloride and sodium oxide to produce magnesium oxide with sodium chloride. 14. Show the formulas of the reactants. 15. Show the formulas of the products. 16.

What is the specific heat of a substance? O A. The energy required to break molecular bonds B. The increase in temperature caused by heating C. The heat required to evaporate a substance D. The amount of heat a substance can hold C

Which of the following atoms releases more energy than oxygen when an electron is added to its valence energy level? Select one: a. helium (He) b. fluorine (F) c. carbon (C) d. nitrogen (N)

End-users of natural gas include (check all that apply) :

Angle of incidence and refraction for air at 0 degrees?

Which formula represents a solution? No explanation needed.

When electrons are removed from the outermost shell of a calcium atom, the atom becomes A) an anion that has a larger radius than the atom. B) an anion that has a smaller radius than the atom. C) a cation that has a larger radius than the atom.