CramPuppy - Free Revision Notes » Igcse » Chemistry » Petrochemicals
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Date: Sun, 21 May 2006 Time: 12:00 AM
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Petrochemicals
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Crude Oil: Is a mixture of hydrocarbons
Molecular Formula
C4H10
Graphical Formula
- Carbon atoms can join up in chains, branched chains, or rings. (Note: I may add the images for these)
- Physical properties of hydrocarbons, depends on teh size of its molecules
Saturated and Unsaturated
- Saturated means it can carry a full number of hydrogen atoms possible - alkane
- Unsaturated means it cannot carry a full number of Hydrogen atoms possible, due to its double bond - alkene
Bromine Water
- Alkenes are more reactive, so they react with bromine water, and turn it colourless
- Alkanes don't, and bromine water stays the same colour
Alkanes
- Molecules belonging to the alkane family have no double bonds
- they are saturated
- Uncreactive
- Formula: CnH2n+2
First Five Alkanes
Alkenes contain carbon to carbon double bond unsaturated are reactive (one of the double bonds is weak) |
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by: Admin
Total views: 2255
Word Count: 562
Date: Sun, 21 May 2006 Time: 12:00 AM
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