Explanations/instrudtions please, for any future problems. 1. Select the correct name for Na3[Co(NO2)6] A) hexanitrocobalt(III) sodium B) hexanitrocobaltate(III) sodium C) sodium hexanitrocobaltate(III) D) sodium hexanitritocobaltate(III) E) sodium hexanitrocobalt (III) 2. Arrange the following acids according to increased acidity: HClO2 , HClO3 , HClO4 , ClOH A) HClO2 > HClO3 > HClO4 > ClOH B) HClO4 > HClO3 > HClO2 > ClOH C) HClO4 > HClO3 > HClO1 > HClO2 D) HClO > HClO2 > HClO3 > HClO4 E) HClO = HClO2 = HClO3 = HClO4 3. Consider the reaction:: TlBr + LiF ? TlF + LiBr Which is the correct prediction and explanation about the equilibrium constant, K, for this reaction? A) K > 1, because Br is a harder base than F B) K > 1, because F is a harder base than Br C) K < 1, because Br is a harder base than F D) K < 1, because F is a harder base than Br E) None of the above 4. Which addition increases the acidity of the solution? A) H2O to liquid NH3 B) CH3COONa to liquid NH3 C) H2O to liquid HCl D) Li2SO4 to liquid H2O E) Na2SO4 to liquid H2SO4 5. The MO delta (?) bonding can result from: (A) p-orbitals head-on overlap (B) p-orbitals side-on overlap (C) d-orbitals side-on overlap (D) d-orbitals head-on overlap (E) side-on overlap between a p-orbital and a d-orbital