Write a balanced half-reaction for the reduction of CrO42–(aq) to Cr(OH)3(s) in a basic solution. a. CrO42–(aq) + 3 OH–(aq) + 3 e– -> Cr(OH)3(s) + 2 O2(g) b. CrO42–(aq) + 3 H+(aq) + 3 e– -> Cr(OH)3(s) c. CrO42–(aq) + 3 H+(aq) -> Cr(OH)3(s) + 2 e– d. CrO42–(aq) + 4 H2O(l) + 3 e– -> Cr(OH)3(s) + 5 OH–(aq) e. CrO42–(aq) + 3 OH–(aq) -> Cr(OH)3(s) + 2 O2(g)

Find the degree of the following polynomial    .

Which of the following is correct for the condensation of gaseous water at 88°C?  The normal boiling point of water is 100°C. a. ΔH < 0, ΔS > 0, and ΔG > 0. b. ΔH < 0, ΔS < 0, and ΔG < 0. c. ΔH > 0, ΔS < 0, and ΔG < 0. d. ΔH = 0, ΔS = 0, and ΔG < 0. e. ΔH > 0, ΔS > 0, and ΔG > 0.

What is the pH of the final solution when 25 mL of 0.021 M HCl has been added to 35 mL of 0.036 M HCl at 25°C? a. 3.3 b. 1.9 c. 1.5 d. 2.7 e. 3.5

For the reaction NO(g) + ½ O2(g)  ⇌ NO2(g) at 750°C, what is the relationship between Kc and Kp? a. Kc = Kp b. Kc = Kp x (RT)–½ c. Kc = Kp = 1.0 d. Kc = Kp x (RT)¾ e. Kc = Kp x (RT)½  

For the second-order reaction below, the initial concentration of reactant A is 0.24 M. If the rate constant for the reaction is 1.5 x 10–2 M–1s–1, what is the concentration of A after 265 seconds?   2A -> B + C rate = k[A]2   a. 0.12 M b. 0.19 M c. 0.95 M d. 4.0 M e. 5.2 M

Which are the Brønsted–Lowry acids in the following equilibrium? CH3COO–(aq) + H2O(l)  ⇌ CH3COOH(aq) + OH–(aq) a. CH3COO– and OH– b. H2O and OH– c. H2O, CH3COOH, and OH– d. CH3COO– and CH3COOH e. H2O and CH3COOH

Who succeeded John F. Kennedy and continued the push for civil rights legislation?

Which legislation passed in 1965 aimed to overcome legal barriers at the state and local levels that prevented African Americans from exercising their right to vote?

What was the primary objective of U.S. military involvement in Vietnam during the 1960s?