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Heteronuclear Diatomic Molecules

Q. Consider the molecular orbital energy level diagrams for O2 and NO2. Which of the following is true? I. Both molecules are paramagnetic. II. The bond strength of O2 is greater than the bond strength of NO. III. NO is an example of a homonuclear diatomic molecule. IV. The ionization energy of NO is smaller than the ionization energy of NO^+. A. I only B. I an IV C. I, II, and IV D. II and III E. I and II

Solved • Feb 17, 2020

Net Ionic Equations

Q. For problems 7-9, create balanced equations, state whether or not a chemical reaction occurs, and include the states of each reactant and product. If a precipitation reaction occurs, provide the ionic and net ionic equations. 8. Ammonium sulfate solution is mixed with a barium hydroxide solution to yield:

Solved • Feb 13, 2020

Net Ionic Equations

Q. For problems 7-9, create balanced equations, state whether or not a chemical reaction occurs, and include the states of each reactant and product. If a precipitation reaction occurs, provide the ionic and net ionic equations. 7. A sodium chloride solution is mixed with a potassium hydroxide solution to yield:

Solved • Feb 13, 2020

Net Ionic Equations

Q. Identify from the following mixtures (problem 4-6) the ones that will produce a precipitate in water. Write balanced chemical reactions for those producing a precipitate (identify all species appropriately). Provide total ionic and net ionic equations: 6. Na2CO3 + CaI2:

Solved • Feb 13, 2020

Chemical Equilibrium

Q. Consider the following equilibrium, for which Kp = 7.48x10^-2 at 470 °C: 2Cl2(g) + 2H2O(g) ⇌ 4 HCl(g) + O2(g) Determine the value of Kp for the following reaction: Cl2(g) + H2O(g) ⇌ 2HCl(g) + 1/2O2(g) Express the equilibrium constant to three significant digits. What is the value of Kc for the reaction i PArt B? Express the equilibrium constant to three significant digits.

Solved • Feb 14, 2020

Mass Percent

Q. 4. What is the percent by mass of an aqueous solution that is 3m ammonium sulfate?

Solved • Feb 12, 2020

Net Ionic Equations

Q. Identify from the following mixtures (problem 4-6) the ones that will produce a precipitate in water. Write balanced chemical reactions for those producing a precipitate (identify all species appropriately). Provide total ionic and net ionic equations: 5. LiOH + CaBr2:

Solved • Feb 13, 2020