The disilicate ion is ________. A) Si2O88- B) Si2O76- C) ...

[JMatthes]

The disilicate ion is ________.
 
  A) Si2O88-
  B) Si2O76-
  C) Si2O84-
  D) Si2O86-
  E) Si2O72-

Question 2

Which transformation could take place at the cathode of an electrochemical cell?
 
  A) MnO2  MnO4-
  B) Br2  BrO3-
  C) NO  HNO2
  D) HSO4-  H2SO3
  E) Mn2+  MnO4-

Question 3

Potassium metal crystallizes in a body-centered cubic structure with a unit cell edge length of 5.31 . The radius of a potassium atom is ________ .
 
  A) 1.33
  B) 1.88
  C) 2.30
  D) 2.66
  E) 5.31

[Zack0mack0101@yahoo.com]

Answer to Question 1

B

Answer to Question 2

D

Answer to Question 3

C