Exam 3

Question 1

-ate’s have 3 oxygens and the charge decreases by 1 from B to N

Answer 1

Period 2

Question 2

1. ate’s have 4 oxygens and the charge is the same as that of the elemental anion
2. ite’s are identical to -ate’s with 1 less oxygen
3. If you add 1 H, the charge drops by 1 and you add the word hydrogen in front of the poly atomic ion
4. If you add 2 H’s (Group 15), then the charge drops by 2 and you add the word dihydrogen in front of the polyatomic ion

Answer 2

Period 3-7 Groups 15 and 16 Family of 2

Question 3

1. The largest of the -ate’s have 4 oxygens and the charge is the same as that of the elemental anion.
2. There are 2 -ate’s and 2 -ite’s
3. Polyatomic ions with 4 oxygens and a -1 charge get the prefix -per

Answer 3

Period 3-7 Group 17 Family of 4

Question 4

NH4+

Answer 4

Ammonium

Question 5

H3O+

Answer 5

Hydronium

Question 6

BO3^3-

Answer 6

Borate

Question 7

CO3^2-

Answer 7

Carbonate

Question 8

C2O4^2-

Answer 8

Oxalate

Question 9

C2H3O2^-

Answer 9

Acetate

Question 10

CN-

Answer 10

Cyanide