LESSON PLAN IN SCIENCE (CHEMISTRY)

I. OBJECTIVE

1. To describe the general types of carbon and its compound.2. To identify the general of compound according to their bonds present.

II. SUBJECT MATTER

A. TOPICIntroduction to Hydrocarbons

B. REFERENCES

Brown et. al., Chemistry: The Central Science 8th edition, Introduction to Hydrocarbons, pp 963-964.Santos et. al., E-Chemistry Textbook, Organic Chemistry: Introduction pp 308

III. LEARNING TASKS

A. RECALLTypes of Reactions

B. MOTIVATION

The notion that organic chemicals and living organisms are connected is certainly true in one sense; life as we know it could not exist without a vast array of complex, biologically important organic molecules.

C. LESSON PROPER

Teacher Activity Student Activity

Organic Chemistry is a branch of chemistry in which carbon compounds and their reactions are studied. A wide variety of classes of substances – such as drugs,

vitamins, plastics, natural and synthetic fibers, as well as carbohydrates, proteins and fats, consists of organic molecules.

Organic chemist determines the structure of organic molecules, study their various reactions, and develop procedures for the synthesis of organic compounds.

Organic chemistry has had a profound effect on life:

Natural materials have been improved and Natural and artificial materials have been

synthesized, improving health, increasing comfort, and adding to the convenience of many products manufactures today.

The advent of organic chemistry is often associated with the discovery in 1828 by the German Chemist Fredrich Wohler that the inorganic or mineral substance called ammonium cyanate could be converted in the laboratory to urea, an organic substance found in the urine of many animals.

The simplest class of organic compounds is the hydrocarbons, compounds composed of only a carbon and hydrogen. Carbon is the only element capable of forming stable, extended chains of atoms bonded through single, double or triple bonds.

Alkanes are hydrocarbons that contain only single bonds, as is ethane, per carbon atoms, they are called saturated hydrocarbons.

Alkenes, also known as olefins, are hydrocarbons that contain C=C double bond, as in ethylene, C2H4.

Alkynes contain a C ≡C triple bond, as in acetylene, C2H2.

Sir, what do organic chemists do?

Sir, who started the field of Organic chemistry?

In aromatic hydrocarbons, the carbon atoms are connected in a planar ring structure, joined by both sigma and pie bonds between carbon atoms. Benzene, C6H6, is the best known aromatic hydrocarbons.

Alkenes, Alkynes, and Aromatic hydrocarbons are called unsaturated hydrocarbons, because they contain less hydrogen than alkane having the same number of carbon atoms.

The names, geometrical structures, and molecular formula for each type of hydrocarbon.

Sir, what are the structures of these types of hydrocarbons?

IV. EVALUATION1. ______________ is a branch of chemistry in which carbon compounds

and their reactions are studied.2. __________ a German Chemist, who is the advent of Organic

Chemistry in his discovery of Ammonium Cyanate in 1828.3. ________ is the simplest class of organic compounds.4. _______ are hydrocarbons that contain only single bonds, as is

ethane.5. _______ also known as olefins, are hydrocarbons that contain C=C

double bond, as in ethylene, C2H4.6. _______ contain a C ≡C triple bond, as in acetylene, C2H2.7. _______ the carbon atoms are connected in a planar ring structure,

joined by both sigma and pie bonds between carbon atoms.8. Give the Structure of Benzene.9. Give the structure of Alkenes.10. Give the structure of Alkynes.

V. ASSIGNMENT

Search for the list of the simplest Alkanes and include its molecular formula, condensed structural formula and name.