Homework #2 - Errors in Chemical Formulas

A. Find the error in the following formulas or names. Correct each example.

1. Al₂O₂

2. (NH4)₂Cl₂

3. K(CIO₂)

4. (OH), AI

5. Ca.(CN)

6. Pb₂NO₁

7. NINO ₂2

8. Mg₂F

9. CIK

10. Ca₂O₂

B. Write the formulas for the following.

a. Ba and Cl

b. Sodium and nitrogen.

c. Ca and Oxygen

d. Aluminum and Carbonate,

e. Ca and SO

f. Iron (III) and oxygen

C. Write the formula of the ionic compound formed from each of the following using the "Criss

Cross" Method.

a. Al and SO₂

b. Ba and CO

c. Co(III) and Cl

d. Fe(II) and PO

e. Pb(IV) and O

f. NH4 and Sulfur