1. Chapter 4 “Chemical Names and Formulas”
H2O
Chapter 4 “Chemical Names and Formulas”
Modified and adapted from
Pre-AP Chemistry
Charles Page High School
Stephen L. Cotton

2. The student will: SWBAT’s
classify the type of bond that forms between two given elements.
write the chemical symbol/name given the name/chemical symbol of an element.
classify a given compound as ionic or molecular.  
given a sheet of common ions, represent an ionic compound in multiple ways--using words and chemical formula.  
represent a molecular compound in multiple ways-- using words, chemical formula and diagrams.  
represent the seven common diatomic molecules in multiple ways-- using words, chemical formula and diagrams.

3. SWBAT Scale
4: Same as a 3.0 but I can make inferences & application to the SWBAT’s
3: I COMPLETELY understand all parts of the SWBAT
2: I understand MOST of the SWBAT’s with teacher help
1: I understand a little of the SWBAT’s but need teacher help
0: I do NOT understand any part of the SWBAT’s and need help!

4. Section 4.5 Naming and Writing Formulas for Organic Compounds
OBJECTIVES:
Interpret the prefixes in the names of Organic compounds in terms of their chemical formulas.

5. Section 4.5 Naming and Writing Formulas for Organic Compounds
OBJECTIVES:
Interpret the functional groups in the names of organic compounds in terms of their chemical formulas.

6. Section 4.5 Naming and Writing Formulas for Organic Compounds
OBJECTIVES:
Apply the rules for naming and writing formulas for organic compounds.

7. Molecular Compounds Organic hydrocarbons
always have C & usually H, O, S, or N in a compound

8. Organic Compounds
Organic Compounds - any covalently bonded compound containing carbon (except carbonates and oxides)
Functional group - a specific arrangement of atoms in an organic compound that is capable of characteristic chemical reactions.

9. Hydrocarbons Hydrocarbons are the simplest organic compounds.
They contain only carbon and hydrogen
They can be straight-chain, branched chain, or cyclic molecules.
Carbon must form 4 bonds

10. Naming Hydrocarbons Alkanes - contain only single covalent bonds
Alkenes - contain one or more carbon-carbon double bond
Alkynes - contain one or more carbon-carbon triple bond

11. Naming Hydrocarbons
C x H (2x-2)
Alkyne

12. Organic Prefixes 2 eth 7 hept 3 pro 8 oct 4 but 9 non 5 pent 10 dec
# of C-atoms Prefix
1 meth
2 eth
3 pro
4 but
5 pent
# of C-atoms Prefix
6 hex
7 hept
8 oct
9 non
10 dec

13. Simple Alkanes

14. Functional Groups

15. Functional Groups
Class Group Ending Halides -X (F, Cl, Br, I) goes in front Alcohol -OH -ol Carboxylics -COOH -oic Acid Amine -NH2 Amino or Amine

16. Examples of Functional Group
Propanol: 3 C’s, single & alcohol C-C-C-OH Ethanoic Acid: 2 C’s, single, Carboxylic C-COOH Methylamine: 1 C, 1 Amine C-NH2 Ethyl Aldehyde: 2 C’s, 1 aldehyde C-CHO

17. Section 4.6 The Laws Governing Formulas and Names
OBJECTIVES:
Define the laws of definite proportions and multiple proportions.

18. Section 4.6 The Laws Governing Formulas and Names
OBJECTIVES:
Apply the rules for naming chemical compounds by using a flowchart.

19. Section 4.6 The Laws Governing Formulas and Names
OBJECTIVES:
Apply the rules for writing the formulas of chemial compounds by using a flowchart.

20. Some Laws:
1. Law of Definite Proportions- in a sample of a chemical compound, the masses of the elements are always in the same proportions.
H2O (water) and H2O2 (hydrogen peroxide)

21. Some Laws:
2. Law of Multiple Proportions- Dalton stated that whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers.

22. - Page 275
Same mass of oxygen

23. Helpful to remember...
1. In an ionic compound, the net ionic charge is zero (criss-cross method)
2. An -ide ending generally indicates a binary compound
3. An -ite or -ate ending means there is a polyatomic ion that has oxygen
4. Prefixes generally mean molecular; they show the number of each atom

24. Helpful to remember...
5. A Roman numeral after the name of a cation is the ionic charge of the cation
Use the handout sheets provided by your teacher!
End of Chapter 4

25. The student will: SWBAT’s
classify the type of bond that forms between two given elements.
write the chemical symbol/name given the name/chemical symbol of an element.
classify a given compound as ionic or molecular.  
given a sheet of common ions, represent an ionic compound in multiple ways--using words and chemical formula.  
represent a molecular compound in multiple ways-- using words, chemical formula and diagrams.  
represent the seven common diatomic molecules in multiple ways-- using words, chemical formula and diagrams.

26. SWBAT Scale
4: Same as a 3.0 but I can make inferences & application to the SWBAT’s
3: I COMPLETELY understand all parts of the SWBAT
2: I understand MOST of the SWBAT’s with teacher help
1: I understand a little of the SWBAT’s but need teacher help
0: I do NOT understand any part of the SWBAT’s and need help!