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Choose the more stable alkene in each of the following pairs. Explain your reasoning. 

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Choose the more stable alkene in each of the following pairs. Explain your reasoning. 

(b) Isopropenylcyclopentane or allylcyclopentane 

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Choose the more stable alkene in each of the following pairs. Explain your reasoning. 

(a) 1-Methylcyclohexene or 3-methylcyclohexene 

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Match each alkene with the appropriate heat of combustion:

Heats of combustion (kJ/mol): 5293; 4658; 4650; 4638; 4632

Heats of combustion (kcal/mol): 1264.9; 1113.4; 1111.4; 1108.6; 1107.1 

 (a) 1-Heptene 

(b) 2,4,-dimethyl-1-pentene

(c) 2,4,-dimethyl-2-pentene

(d) (Z)-4,4-dimethyl-2-pentene

(e) 2,4,4-trimethyl-2-pentene

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A growth hormone from the cecropia moth has the structure shown. Express the stereochemistry of the double bonds according to the EZ system. 

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The sex pheromone of the honeybee is the  E stereoisomer of the compound shown. Write a structural formula for this compound. 

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Write bond-line formulas for each of the following naturally occurring compounds, clearly showing their stereochemistry.

The worm in apples is the larval stage of the codling moth. The sex attractant of the male  moth is the 2Z,6E stereoisomer of the compound shown.

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Nerol is a naturally occurring substance that is a stereoisomer of geraniol. Write its structure. 

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Write bond-line formulas for each of the following naturally occurring compounds, clearly showing their stereochemistry

Geraniol: a hydrocarbon with a rose-like odor present in the fragrant oil of many plants (including geranium flowers). It is the E isomer of

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(a) The sex attractant of the Mediterranean fruit fly is ( E )-6-nonen-l-ol. Write a structural formula for this compound, showing the stereochemistry of the double bond. 

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Grandisol is one component of the sex attractant of the boll weevil. Write a structural formula for grandisol given that R in the structure shown is an isopropenyl group.

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(a) A hydrocarbon isolated from fish oil and from plankton was identified as  2,6,10,14-tetramethyl-2-pentadecene. Write its structure.

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Give an IUPAC name for each of the following compounds:

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Give an IUPAC name for each of the following compounds:

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Give an IUPAC name for each of the following compounds:

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Give an IUPAC name for each of the following compounds:

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Give an IUPAC name for each of the following compounds:

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Give an IUPAC name for each of the following compounds:

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Give an IUPAC name for each of the following compounds:

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Write a structural formula and give two acceptable IUPAC names for each alkene of molecular formula C7H14 that has a tetrasubstituted double bond.

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Write structural formulas for each of the following:

(l) trans -1-Isopropenyl-3-methylcyclohexane

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Write structural formulas for each of the following:

(k) 1,1-Diallylcyclopropane

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Write structural formulas for each of the following:

(j) Vinylcycloheptane

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Write structural formulas for each of the following:

(i) 4-Methyl-4-penten-2-ol

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Write structural formulas for each of the following:

(h) 1-Bromo-6-methylcyclohexene

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