In which species does chlorine have an oxidation number of zero? ...

[ashley]

In which species does chlorine have an oxidation number of zero?
 
  A) Cl2
  B) HClO4
  C) NaClO3
  D) Cl-
  E) HCl

Question 2

Determine the pH of a 0.15 M aqueous solution of KF. For hydrofluoric acid, Ka = 7.0  10-4.
 
  A) 0.82
  B) 5.83
  C) 8.17
  D) 5.01
  E) 1.17

[jomama]

Answer to Question 1

A

Answer to Question 2

C

[ashley]

Thanks for the timely response, appreciate it

[ktidd]

Gracias!