Choose the compound below that should have the highest melting point according to the ionic bonding model. A) AlN B) MgO C) Li F D) CaS E) Rb F

Calculate the wavelength of light associated with the transition from n=1 to n=3 in the hydrogen atom. A) 103 nm B) 155 nm C) 646 nm D) 971 nm E) 136 nm

Which of the following statements is TRUE? A) An ionic bond is much stronger than most covalent bonds. B) An ionic bond is formed through the sharing of electrons. C) Ionic compounds at room temperature typically conduct electricity. D) Once dissolved in water, ionic compounds rarely conduct electricity. E) None of the above are true.

Identify the color of a flame test for sodium. A) violet B) red C) white D) yellow E) blue

Which of the following visible colors of light has the highest frequency? A) green B) red C) blue D) yellow E) orange

Which one of the following elements is a poor conductor of heat and electricity? A) copper B) iodine C) iron D) lead

When an aqueous solution of manganese (II) nitrate is combined with an aqueous solution of ammonium sulfide, what should precipitate out? A) MnS B) Mn(SO3)2 C) Mn(SO4)2 D) Mn2SO3 E) Mn2SO4

Calculate the energy of the orange light emitted, per photon, by a neon sign with a frequency of 4.89 × 1014 Hz. A) 3.09 × 10-19J B) 6.14 × 10-19J C) 3.24 × 10-19J D) 1.63 × 10-19J E) 5.11 × 10-19J

In the peripheral blood, approximately __________ percent of the platelets are sequestered in the spleen as functional reserves.

Choose the bond below that is MOST polar. A) H-I B) H-Br C) H-F D) H-Cl E) C-H