Alkanes and alkenes physical properties and chemical properties
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Transcript of Alkanes and alkenes physical properties and chemical properties
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•State 5 physical properties of ethane
•Low melting and boiling point•Low density•Not soluble in water•Soluble in organic solvent•Cannot conduct electricity
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Chemical properties of alkanes (20 m)a) Write chemical equation for
complete combustion of methane
OHCOOCH 2224 22
Correct reactant = 2m
Correct product = 2m
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Write BOTH STRUCTURAL AND MOLECULAR equations for
substitution reaction of methane
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Step 1CH4 + Cl2 ---------> CH3Cl + HCl
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step 2CH3Cl + Cl2 -------> CH2Cl2 + HCl
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Step 3CH2Cl2 + Cl2 ---------> CHCl3 + HCl
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ClCl step 4
CHCl3 + Cl2 -------> CCl4 + HCl
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•State 5 physical properties of ethene
•Low melting and boiling point•Low density•Not soluble in water•Soluble in organic solvent•Cannot conduct electricity
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ADDITIONAL REACTION of ethene•Addition of hydrogen
62242 HCHHC
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ADDITIONAL REACTION of ethene•Addition of bromine
242242 BrHCBrHC
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ADDITIONAL REACTION of ethene•Addition of hydrogen chloride
ClHCHClHC 5242
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ADDITIONAL REACTION of ethene•Addition of steam
OHHCOHHC 52242
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ADDITIONAL REACTION of ethene•Addition of KMnO4 acidified
242242 )(][ OHHCOOHHC