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Name___________________________________ Per. ______ Nomenclature (Ch. 7)

OTHS Academic Chemistry Objectives: Write the chemical formulas of common polyatomic ions, ionic compounds

containing main group or transition metals, covalent compounds, acids, and bases

Name ionic compounds containing main group or transition metals, covalent compounds, acids, and bases, using International Union of Pure and Applied Chemistry (IUPAC) nomenclature rules

Vocabulary: Nomenclature, chemical bonding, polyatomic ion, cation, anion, oxidation number, subscript

Topics to master: How to classify compounds as ionic, molecular, acid, or base How to correctly name each type of compound

How to correctly write formulas for each type of compound

Memorize: Trend on the periodic table for monatomic ions

Oxidation numbers for:

Ag is 1+

Zn is 2+

Cd is 2+

Prefixes for molecular compounds (see diagram to the right)

NH3 = ammonia

Provided: Periodic Table

CHECKLIST: How to be successful in OTHS Academic Chemistry

Pay attention and take notes in class Ask questions in class on material that is not clear Work every page in the practice packet for the unit Check answers to the practice packet online at http://othschem.weebly.com/ Come to tutorials with any chemistry teacher Do the online homework and check solutions once they become available Always do the practice test for every test & ask good questions on review day Keep up with the calendar for the class/be aware of approaching quizzes, tests, & other deadlines Use videos posted on website as a quick and convenient tutorial Read the chapter in the book

Number of atoms

Prefix

1 mono-

2 di-

3 tri-

4 tetra-

5 penta-

6 hexa-

7 hepta-

8 octa-

9 nona-

10 deca-

Name__________________________ Per. _____

Identifying Compounds

Ionic compounds are composed of a metal ion and a nonmetal ion. Either or both of these ions may be replaced with a polyatomic ion. Examples: KCl Na2S NH4F CaCO3 NH4NO3

Molecular (also known as covalent) compounds are composed of nonmetal (and sometimes metalloid) elements only. No metals!!!! Examples: CO2 PCl3 NO SiO2 CCl4

Acids are composed of a hydrogen ion and a nonmetal ion or polyatomic ion. Examples: HCl HF H2S HNO3 H2SO4

Bases are composed of a metal ion and a hydroxide (OH-) ion. Examples: LiOH Al(OH)3 Ba(OH)2 NaOH KOH

Classify the following compounds as ionic (I), molecular (M), acid (A), or base (B):

1. LiBr _____

2. HCN _____

3. PbI _____

4. Ca(OH)2 _____

5. CO _____

6. OCl2 _____

7. HBr _____

8. CuF _____

9. HgBr2 _____

10. Zn(OH)2 _____

11. NH4I _____

12. FeCl3 _____

13. PCl5 _____

14. KMnO4 _____

15. Al2(SO4)3 _____

16. CH4 _____

17. H2O ??? _____

18. H3PO4 _____

19. KI _____

20. P2O5 _____

21. Na2CO3 _____

22. KOH _____

23. Ba3(PO4)2 _____

24. HNO2 _____

25. NaOH _____

26. N2O5 _____

1

2

Name_____________________________ Per. _____

Ionic Compound Worksheet

Helpful hints: • The simplest type is composed of a metal + nonmetal. Examples: NaCl, K2O,

MgBr2 • Ionic compounds may also contain polyatomic ions. Examples: NaNO3, NH4Cl,

K2SO4 • Ionic compounds are named simply by naming the two ions, in order. Positive

(cation) always comes 1st! Negative (anion) always comes 2nd! • Remember that some transition metals require a Roman numeral to indicate the

charge when 2 or more possibilities exist. Example: copper (I) = Cu+, and copper (II) = Cu2+.

• Ionic compound formulas are written by “criss-crossing” the charges on the ionsand reducing subscripts if possible.

Cation Anion Formula Name

1. calcium oxide

2. NaCl

3. NH4+ NO3

-

4. Cu(OH)2

5. iron (III) sulfate

6. K+ SO32-

7. Na3PO4

8. Pb2+ Br-

9. lead (II) carbonate

10. Al3+ PO43-

11. magnesium bicarbonate

12. K2S

13. Ba2+ SO42-

14. zinc phosphate

15. FeCl3

3

4

5

6

7

Name:

MIXED TYPES – FORMULAS AND NAMES WORKSHEET

(I) Identify the compound as ionic (I), molecular/covalent (M), acid (A), or base (B);

(II) Name or write the formula using the correct rules.

1. ammonium sulfide ____ __________________________

2. sodium hydroxide ____ __________________________

3. hydrobromic acid ____ __________________________

4. potassium bromide ____ __________________________

5. lead (IV) iodide ____ __________________________

6. carbon tetrachloride ____ __________________________

7. rubidium hydroxide ____ __________________________

8. manganese (II) fluoride ____ __________________________

9. diphosphorus trisulfide ____ __________________________

10. chromium (III) sulfate ____ __________________________

11. calcium chloride ____ __________________________

12. carbonic acid ____ __________________________

13. Mg(CN)2 ____ __________________________

14. P4O10 ____ __________________________

15. H3PO4 ____ __________________________

16. N2O4 ____ __________________________

17. Cu3(PO4)2 ____ __________________________

18. Fe(C2H3O2)3 ____ __________________________

19. KOH ____ __________________________

20. Al(OH)3 ____ __________________________

21. NH3 ____ __________________________

22. H2O ____ __________________________

23. HNO2 ____ __________________________

24. (NH4)3PO3 ____ __________________________

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