rings, polymers and analysis

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what technique was used to show that all the bond lengths in benzene are the same?
x ray crystallography
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what is the experimental value the enthalpy change of hydrogenation of benzene, cyclohexene and cyclohexa-1,3,5 triene
benzene; -208KJ/mol ; cyclohexene: -120KJ/mol, cyclohexa-1,3,5 triene- -360KJ/mol
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definition of addition reaction
addition reaction is one which a reactant is added to an unsaturated molecule to make a saturated molecule
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definition of substitution
is one in which an atom or group of atoms are replaced with a different atom or group of atoms
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why does benzene reacts by substitution reactions reactions rather than addition reactions
in an addition reaction, electrons from the delocalised system would need ti b
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what is the experimental value the enthalpy change of hydrogenation of benzene, cyclohexene and cyclohexa-1,3,5 triene

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benzene; -208KJ/mol ; cyclohexene: -120KJ/mol, cyclohexa-1,3,5 triene- -360KJ/mol

Card 3

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definition of addition reaction

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Card 4

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definition of substitution

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Card 5

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why does benzene reacts by substitution reactions reactions rather than addition reactions

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