Name:______________________________
Formula Assignment #3
Compound Names and Formulas
Elements with ONE, TWO OR
MORE Combining Capacities
A. Write the correct formula for the following
compounds.
1. gallium oxide
______________________ 11. silicon oxide _______________ญญญ________
2. mercury (I) chloride
__________________ 12. aluminum bromide
___________________
3. tin (IV)
bromide _____________________ 13.
tin (II) sulphide ______________________
4. indium oxide ______________________ 14. germanium (III) bromide
_________________
5. cadmium sulphide
__________________ 15.
nickel (II) oxide
______________________
6. magnesium oxide __________________ 16. strontium astatide
_____________________
7. potassium
nitride ___________________ 17.
aluminum oxide _____________________
8. iron (III) sulphide
____________________ 18.
copper (II) oxide
______________________
9. gold (III)
bromide ____________________ 19.
lawrencium fluoride ___________________
10. zinc oxide ______________________ 20. actinium oxide
______________________
B. Determine the combining capacity of the first
element by using the reverse cross rule.
Name the compound correctly. Only
include the Roman Numeral in the name if the first
element has 2 or more combining capacities.
1. CaBr2 _______________________ 9. AsCl5
_______________________
2. K2O _______________________ 10. Eu2O3
_______________________
3. Fe2O3 _______________________ 11. NdBr3 _______________________
4. ZnF2 _______________________ 12. Cu3N2
_______________________
5. CuCl _______________________ 13. CoS _______________________
6. Ni2O3
_______________________ 14. ZrO2 _______________________
7. AuCl _______________________ 15. Li2O_______________________
8. HgBr _______________________ 16. NaH
_______________________