1. Explain why you put subscripts in chemical formulas.
Activator
Explain why you put subscripts in chemical formulas.

4. Aqua Rules
American Rules
no Roman no Greek

5. Aqua Name
Write element names and change ending of second element to –ide.
Example: Na2O  Sodium oxide

6. Aqua Formulas
Balance positive and negative charges, then add subscripts
Example:
Na1+
Na2O
O2-
Na1+
It take 2 Na1+ to balance 1 O2-

7. Red Rules
Roman Rules
Roman numerals are the positive oxidation number for the transition metals (“the valley varies”)

8. Red Name
Write element names and change ending of second element to –ide.
Use the roman grid to find the red oxidation number and write as Roman Numeral.

9. Red Formulas
Get oxidation number for red element from Roman Numeral, balance charges, and write subscripts.
Example: Iron (III) oxide
Oxidation number for Iron (III) = 3+
O2-
Fe3+
It takes 2 Fe3+ and 3 O2- to balance positive and negative charges  Fe2O3
O2-
Fe3+
O2-

10. Green Rules
Greek Rules
Greek prefixes in name

11. Greek Prefixes One mono Two di Three tri Four tetra Five penta
Six hexa
Seven hepta
Eight octa
Nine nana
Ten deca

12. Green Name
Turn subscripts into Greek prefixes in front of element names (do not use mono- on the first element). Change ending of second element to –ide.
Example: CO2  Carbon dioxide
CO  Carbon monoxide

13. Green Formula
Turn Greek prefixes into formula subscripts. Do not try to balance charges.
Example: Carbon tetrachloride  CCl4

14. Ticket out the Door 1. NaCl 2. AlI3 3. NiO 4. Ni2O3 NaF
Name the following on a sheet of paper:
1. NaCl AlI3
3. NiO Ni2O3
NaF
Write the following equations:
1. Iron (II) chloride 2. Sodium chloride

15. Right or wrong?
If the formula is incorrect, write the correct formula:
LiF2
KBr
MgCl
AlO2

16. Naming Ionic Compound Bond between a metal and nonmetal Name the metal
Name the nonmetal and change the ending to –ide.

17. Write the formulas and name the compounds
Na+1 Cl Mg P-3
2. Ba+2 F Ca Cl-1
3. K S Cs P-3
4. Al+3 I Al P-3

18. Write the formulas and Name the compounds
K bonded with Cl 5. Sr bonded with P
2. Ba bonded with P 6. Cs bonded with Cl
3. Fr bonded with O 7. Na bonded with N
4. Al bonded with S 8. Al bonded with Cl

19. Ticket Out The Door Write formulas and name the following:
Na bonded with P
Ca bonded with N
Cs bonded with Se
Ba bonded with Br
Li bonded with I

20. Name the Compounds (p.54) 6. ZnS 11. FeO 7. Ag2O 12. Fe2O3
9. NiO CrS
10. Ni2O Cr2S3

21. Name the Compounds (p.54) 15. CuCl 19. MnBr2 16. CuCl2 20. MnBr4
17. PbO
18. PbO2

22. Ticket Out the Door Name the following: 1. NaCl 2. AlI3
3. NiO Ni2O3
5. NaF

23. Write and name the following Ionic Compounds with “regular” metals
NaCl LiCl
NaF KCl
Al2O CaS
CaI BeF
AlI K3N
Sodium chloride
Lithium chloride
Sodium fluoride
Potassium chloride
Calcium sulfide
Aluminum oxide
Calcium iodide
Beryllium fluoride
Aluminum iodide
Potassium nitride

24. Write and name the following Ionic Compounds with “transition” metals
ZnS MnO
NiO Mn2O3
Ni2O MnBr2
CrCl MnBr4
CrCl FeO
Zinc (II) sulfide
Manganese (II) oxide
Nickel (II) oxide
Manganese (III) oxide
Manganese (II) bromide
Nickel (III) oxide
Chromium (II) chloride
Manganese (IV) bromide
Chromium (III) chloride
Iron (II) oxide

25. Name the following TiBr3 6. Zn3P2 Cu3P 7. Cu2O CaSe 8. SnS2
AlAs Pb3N2
NaBr Cs2O
Titanium (III) bromide
Zinc (II) phosphide
Copper (I) phosphide
Copper (I) oxide
Tin (IV) sulfide
Calcium selenide
Aluminum arsenide
Lead (II) nitride
Sodium bromide
Cesium oxide

26. Write the following formulas
Magnesium phosphide 6. Sodium fluoride
Aluminum iodide Barium chloride
Lithium bromide Sodium chloride
Potassium sulfide Calcium oxide
Barium fluoride Beryllium sulfide

27. Write the following formulas
Silver (I) oxide 6. Chromium (II) chloride
Copper (I) bromide 7. Chromium (III) chloride
Copper (II) bromide Zinc (II) sulfide
Iron (II) oxide 9. Manganese (II) oxide
Iron (III) oxide 10. Manganese (III) oxide
CrCl2
Ag2O
CrCl3
CuBr
ZnS
CuBr2
MnO
FeO
Mn2O3
Fe2O3

28. Write the following formulas
Lithium oxide Copper (II) chloride
Magnesium oxide 7. Lead (II) oxide
Potassium sulfide Lead (IV) oxide
Calcium sulfide 9. Manganese (II) bromide
Aluminum chloride 10. Manganese (IV) bromide
Li2O
CuCl2
MgO
PbO
K2S
PbO2
CaS
MnBr2
AlCl3
MnBr4

29. Warm Up What is wrong with the following? Aluminum (III) trichloride
Iron chloride
Carbon (IV) oxide
Monocarbon dioxide
Magnesium monoxide

30. Write the names for . . . Na3N NO2 FeO Fe2O3 Sodium nitride
Nitrogen dioxide
Iron (II) oxide
Iron (III) oxide

31. Write the names for . . . NO Nitrogen monoxide N2O Dinitrogen monoxide
AlCl3
Al2O3
Nitrogen monoxide
Dinitrogen monoxide
Aluminum chloride
Aluminum oxide

32. Write the formulas for . . . Dinitrogen pentaoxide Nitrogen dioxide
Carbon tetrachloride
Aluminum chloride
N2O5
NO2
CCl4
AlCl3

33. Write the formulas for . . . Chromium (II) sulfide
Chromium (III) sulfide
Manganese (IV) bromide
Aluminum oxide
CrS
Cr2S3
MnBr4
Al2O3