Presentation on theme: "Organic Chemistry AP Chapter 25. Properties of Organic Acids Usually have low melting points (below 300 ° C) Usually are non-polar (unless they contain."— Presentation transcript:
Properties of Organic Acids Usually have low melting points (below 300 ° C) Usually are non-polar (unless they contain functional groups) and are insoluble in water. Usually are non-conductors of electricity. Can be solid, liquid or gas. – 1-4 carbons tend to be gaseous at room temp. – 5-10 carbons tend to be liquids (gas, solvents) – 12-18 carbons (jet fuels, kerosene) – Above 18 carbons are solids.
Polymers Made up of many repeating units called monomers. Plastics are polymers made up of crude oil. Polyethylene – many ethene (ethylene) groups linked together (plastic grocery bags, bottles) Polystyrene, (CD cases, and with CO 2 - styrofoam cups)
Hydrocarbons A hydrocarbon is any chemical that consists of only carbon and hydrogen. They all contain a carbon backbone, called a carbon skeleton.
Types of Hydrocarbons Alkanes – single bonds between the carbon atoms Alkenes – double bonds between the carbon atoms Alkynes – triple bonds between the carbon atoms Aromatic hydrocarbons – contain at least one benzene ring.