Which of the following has the smallest value of Ka? Select one a. H2 PO b....
Which of the following is the conjugate acid of S042-? Select one: O a. H2SO4 O b. H3 0+ O C. HSO32- d. S032- O e. HS04 -
Which equation correctly represents electron capture by the Po nucleus? Select one: A. Po + e → At B. Po + β → At C. Po → At + β D. Po → Bi + β E. Po + e → Bi
Which element in Group 6A has the highest electron affinity? Select one: a. O b. S c. Se d. Te e. Po
Which of the following elements has the smallest value of IE1? a) B b) Al c) Ga d) In
30. In the following equation which one of the compounds is acting as an acid H2(SO4) + H2O --> HSO4- + H3O+ a. H2O (Incorrect) b. H2SO4 c. H3O+ d. HSO4- e. none of the above
Which of the following Newman conformations is the least stable? сн. нс H₂h снз H2 H₃ н? CH₃ CH₂ H3 C сна 3 H₂CH Н. Н НІ Select one: о а. 4 o b. 3 о с 2 od. 1 Previous page Text pag
Please answer all questions Which of the following is NOT a strong acid? Select one: O a. H2S04 O b. HF O c. H Br O d. HNO3 о е. НСІ Calculate Ka for ammonium, NH4+. Select one: O a. 9.3 O b. 1.8 x 10-5 O c. 4.7 O d. 5.6 x 10-10 o e. 1.0 x 10-14
For which one of the following reactions is ASº negative? Select one: O a. 3 H2(g) + Fe2O3(s) → 2 Fe(s) + 3 H2O(g) O b. (NH4)2CO3(s) + 2 NH3(g) + H2O(g) + CO2(g) O c. 2 NO2(g) → N2(g) + 2 O2(g) O d. 2 IBr(g) → Iz(s) + Brz(4) o e. CoH6(s) → CoH6()
Which of the following oxoacids has the smallest value for Ka,1 ? H2TeO3 H2SO3 H2TeO4 H2SeO4 H2SeO3 H2SO4 Which of the following choices is appropriate if you have made an HBrO/NaBrO buffer and the pH is 8.0, and you want to have the buffer with equal amounts of conjugate components. Choose all that apply. Add some strong base Add some strong acid Add some weak base Add some weak acid Add some water
Which reaction has a positive ΔS value? Which reaction has a positive AS value? Select one: O a. 2H2 (g) + O2 (g) → 2H20 (g) O b. 2NO2 (g) → N204 (g) C. CO2 (g) → CO2 (s) O d. BaF2 (s) — Ba2+ (aq) + 2F- (aq) O e. 2Hg (1) + O2 (g) → 2H30 (s)