The demand curve is downward sloping because:

 Which species is the strongest reducing agent from the table in Question 16?A. Ag(s) B. Cu(s) C. Zn(s) D. Li(s)

 A current of 2.0 A passes through an electrolytic cell for 600 seconds. What total charge passes through the cell?A. 300 C B. 600 C C. 1200 C D. 1800 C

1, Which of the following shorthand galvanic cell notations for the zinc – copper standard cell is correct?                        Cu2+  +  Zn  →  Zn2+  +  Cu (a) Cu2+ | Cu || Zn | Zn2+                                           (b) Cu2+ | Cu || Cu | Cu2+ (c) Cu2+ | 2e– || 2e– | Zn                                            (d) Zn | Zn2+ || Cu2+ | Cu (e) Zn | Cu2+ || Zn2+ | Cu

90% of deaf individuals are born to hearing parents.

The fact that Eskimos have many words for snow is a hoax because:

17. Calculate the pH of a 0.020 M HBrO solution? The Ka for HBrO is 2.5 X 10-9.          a) 4.80   b ) 4.91   c) 5.02          d) 5.15    e) 5.38

Which of the following statements is true regarding the titration curve of a weak acid being titrated with a strong base?

30. Choose the response that includes all the following combinations that are     buffer solutions and none that are not buffer solutions. All components are     present in 0.10 M concentrations.           I.        HCN and NaCN                                II.      NH3 and NH4Cl           III.     HNO3 and NH4NO3                        IV.     H2SO4 and Na2SO4           (a) I, III, and IV                    (b) I and II                             (c) II, III, and IV           (d) III and IV                         (e) I and III

Which of the following is the correct Henderson-Hasselbalch equation?A. pH = pKa − log([A⁻]/[HA])B. pH = pKa + log([A⁻]/[HA])C. pOH = pKa + log([HA]/[A⁻])D. pH = log([H⁺])