1. -or- How to Use a Flowchart
How to name a compound
-or-
How to Use a Flowchart 1

2. This is for a compound that is
QxRy 2

3. SYMBOLS Q is any element or ion (or groups of elements that make
an ion -- polyatomic
ions). 2

4. SYMBOLS
R is any element
or ion
(polyatomic ion). 2

5. SYMBOLS
X and Y are
numbers and are
written as
SUBSCRIPTS. 2

6. Metals vs. Non-metals
Non-metal s
Metals 3

7. Box 1
ALWAYS ask yourself:
Any of
these 3 questions 4

8. Box 1
ALWAYS ask yourself:
Is the first thing listed a metal? 4

9. Box 1
ALWAYS ask yourself:
Is Q = metal? 4

10. Box 1
ALWAYS ask yourself:
Does it have a positive charge? 4

11. These compounds have two names --No
These compounds have two names --
Molecular compounds
Covalent compounds 5

12. Electrons
Covalent
compounds
SHARE
electrons 5

13. Box 2 Name the first non-metal and then name the second non-metal.
Change the ending to -ide. 5

14. Box 2
Use the prefixes for
covalently
bonded compounds.

15. Prefixes 6 = Hexa 1 = Mono 7 = Hepta 2 = Di 3 = Tri 8 = Octa 4 = Tetra
9 = Nona
10 = Deca
1 = Mono
2 = Di
3 = Tri
4 = Tetra
5 = Penta 6

16. Name
N2O3 =
Dinitrogen
Trioxide 7

17. YES
These compounds
are all IONIC and
made out of two
parts. 8

18. Parts of IONIC Compound
CAtION
The part of the compound that is positively charged. 9

19. Parts of IONIC Compound
ANION
The part of the compound that is negatively charged. 9

20. Naming
Positive charge is first, then negative charge

21. Ionic compounds gain or lose electrons

22. Box 3
ALWAYS ask yourself:
Is Q = H? 10

23. YES
Box 4 11

24. Box 4
Name as
an acid. 11

25. Box 5
[STEM]ending
Find ending of anion.
-ide -ite -ate 12

26. Anions
S2-
Sulfide
SO32-
Sulfite
CH3COO1-
Acetate
NO21-
Nitrite 13

27. Box 6
ide 14

28. Box 6A
Name of acid is:
hydro[stem]ic
acid 15

29. Box 7
ite 16

30. Box 7A
[stem]ous
acid 17

31. Box 8
ate 18

32. Box 8A
[stem]ic
acid 19

33. No Box 9 ALWAYS ask yourself:
Does the first ion (cation) listed have a roman numeral in its name? 20

34. Yes
Box 10
Determine
the roman
numeral. 21

35. Yes
Box 10
Determine it
by using
charges or
by algebra. 21

36. Name the compound by naming the
Box 11
Name the compound by naming the 22

37. Box 11
cation
first 22

38. Box 11
then name the
anion. 22

39. EXAMPLES 23

40. KNO3 Ionic Compound K+ = Potassium (+1) ion NO3- = Nitrate (-1) ion
Potassium Nitrate
Box 1 -> 3 -> 9 -> 11 24

41. P2O5 Covalent compound Five oxygen = pentoxide diphosphorus pentoxide
Two phosphorus = diphosphorus
Five oxygen = pentoxide
diphosphorus pentoxide
Box 1-> 2 29

42. CuSO4 Ionic Compound Cu 2+ = Copper II (+2) SO4 2- = Sulfate (-2) ion
Copper (II) Sulfate
Box 1 ® 3 ® 9 ® 10 ® 11 25

43. CaCO3 Ionic Compound Ca 2+ = Calcium(+2) ion
CO32- = Carbonate (-2) ion
Calcium Carbonate
Box 1 -> 3 -> 9 -> 11 26

44. N2O Covalent compound Two nitrogen = dinitrogen One oxygen = monoxide
dinitrogen monoxide
Box 1-> 2 34

45. H2SO4 Ionic Compound Sulfuric Acid H+ = Hydrogen (+1) ion
SO4-2 = Sulfate (-2) ion
Anion ending is -ATE
Box 1 -> 3 -> 4 -> 5 -> 8 -> 8A 33

46. (NH4)3PO4 Ionic Compound NH4+ = Ammonium (+1) PO4-3 = Phosphate (-3)
Ammonium Phosphate
Box 1 -> 3 -> 9 -> 11 27

47. Na2O Ionic compound Na + = Sodium ion (+1) O -2 = Oxide ion (-2)
Sodium Oxide
Box 1-> 3 -> 9 -> 11 28

48. HCl Ionic compound H+ = Hydrogen (+1) ion Cl- = Chloride (-1) ion
Anion ending is -IDE
Hydrochloric Acid
Box 1->3->4->5->6->6A 30

49. Mg(OH)2 Ionic Compound OH- = Hydroxide (-1) ion Magnesium Hydroxide
Mg+2 = Magnesium (+2) ion
OH- = Hydroxide (-1) ion
Magnesium Hydroxide
Box 1 -> 3-> 9 -> 11 31

50. Fe2 (Cr2O7)3 Ionic compound Iron (III) Dichromate
Fe+3 = Iron (III) (+3)
Cr2O7-2 = Dichromate (-2)
Box 1 -> 3 -> 9 -> 10 -> 11 32