Question

For each of the following compounds decide what the charge of the anion and the cation is respectively. If the cation or anion is a polyatomic ion, you may simple state the charge on the entire polyatomic ion. (For example if PO. is present it would simple be-3). 5. a. CaO Anion: Cation: b. Fe2O Anion:_ Cation: c. Ba(OH);2 Anion: cation: d. NaOH Anion: Cation: e. NH4CI Anion: Cation: f. Na2COs Anion: Cation: g. K2SO4 Anion: Cation:_

Answer 1

a. CaO

cation is Ca^2+              anion is O2^-

b. Fe2O3

cation is Fe^3+                   anion is O2^-

c. Ba(OH)2

cation is Ba^2+                      anion is OH^-

d. NaOH

cation is Na^+                           anion is OH^-

e. NH4Cl

   cation is NH4^+                      anion is Cl^-

f. Na2CO3

   cation is Na^+                   anion is CO3^2-

g. K2So4

    cation is K^+                 anion is SO4^2-