The best explanation for the dissolution of ZnS in dilute HCl is ...

[P68T]

The best explanation for the dissolution of ZnS in dilute HCl is that:
   
  a.
  The zinc ion is amphoteric.
   
  b.
  The sulfide-ion concentration is decreased by the formation of H₂S.
   
  c.
  the sulfide-ion concentration is decreased by oxidation to sulfur.
   
  d.
  the zinc-ion concentration is decreased by the formation of a chloro complex.
   
  e.
  The solubility product of ZnCl₂ is less than that of ZnS.

Question 2

Which of the following solid salts is more soluble in 1.0 M H⁺ than in pure water?
   
  a.
  NaCl
   
  b.
  KCl
   
  c.
  FePO₄
   
  d.
  AgCl
   
  e.
  KNO₃

Question 3

Which of the following solid salts is more soluble in 1.0 M H⁺ than in pure water?
   
  a.
  NaCl
   
  b.
  CaCO₃
   
  c.
  KCl
   
  d.
  AgCl
   
  e.
  KNO₃

Question 4

The solubility of AgCl in water is _____ the solubility of AgCl in strong acid at the same temperature.
   
  a.
  greater than
   
  b.
  less than
   
  c.
  about the same as
   
  d.
  cannot be determined
   
  e.
  much different from

[robbielu01]

Answer to Question 1

b

Answer to Question 2

c

Answer to Question 3

b

Answer to Question 4

c

[P68T]

Excellent

[triiciiaa]

Wow, this really help