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
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
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
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 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)
NH2 Select one: O a. propanone / H,804 o b. 2-propanol/ H,SO4 o c. ethanal/ H, SO o d. 1-propanol/H,SO e. propanal/ H,SO4