Chapter 8, Problem 48PP

How does the structure of a cycloalkane differ from that of a straight-chain or branched-chain alkane?

Compounds with two carbonyl groups are named as alkane diones, for example: R 2,3-butanedione The compound above is an artificial flavor added to microwave popcorn and movie-theater popcorn to simulate the butter flavor. Interestingly, this very same compound is also known to contribute to body odor. Name the following compounds: cyclohexane-1,3-dione cycloheptane-1,4-dione gily nonane-2,8-dione

Alkenes and alkynes react similarly to each other. Hydrogenation, halogenation, and hydration reactions are all types of addition reactions in which the reagent adds across the multiple bond of the reactant • Hydrogenation is the addition of hydrogen gas in the presence of a catalyst such as platinum, palladium, or nickel. • Halogenation involves a reaction with a halogen such as Cl₂ or Br₂ to produce a dihaloalkane or dihaloalkene product. Hydration reactions take place when alkenes or alkynes react with water in the presence of a strong acid catalyst to yield an alcohol. ▼ Part A Predict the product of the reaction of 1-butene with bromine. Enter the IUPAC name. ▸ View Available Hint(s) Submit ▾ Part B An alkyne undergoes hydrogenation to produce an alkane as follows: 04 RC=CR + 2H₂ Q Pd catalyst alkane Predict the product and draw it. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all hydrogen atoms. To add an R group, double click an while…

Explain why alkenes are much more reactive than alkanes towards chlorine (CI2) or bromine (Br2) in the dark at room temperature, and why alkanes do not react with HCI (g) or HBr (g) whereas alkenes do.

Write the structure of the compound that will be produced in the following reaction?  CH3 –C ≡ C–CH2– CH2 – CH3     + 2HBr→ a) Other than the combustion of alkanes, why are alkanes not reactive, or when they do react, they do so very slowly? B) What chemical reaction can alkenes and alkynes undergo that alkanes cannot? Explain

Mark the correct statements about the structural features of alkenes and alkynes. *         A- Free rotation is not possible around a double or triple bond.         B- A triple bond is shorter and stronger than a double bond.         C- A pi-bond can only form by overlap of p-orbitals on adjacent atoms if these atoms are from the same element.         D- The pi-bond in an alkene is weaker than the sigma bond because the sideways overlap of p-orbitals is less than the head-to-head overlap of sp² hybrid orbitals.         E- All the bond angles in an alkyne are 180°.

Gasohol is a mixture of 90% gasoline and 10% ethanol, CH 3CH 2OH. Ethanol is considered an environmentally friendly fuel additive because it can be made from a renewable source—sugarcane. Ethanol burns in air to form CO 2 and H 2O, and, like the combustion of alkanes, this reaction also releases a great deal of energy. Write a balanced equation for the combustion of ethanol.

Which of the following alkanes will have the highest vapor pressure? n-heptane 2,4,5-trimethylheptane 2,3-dimethylpentane 3-methylhexane

explain structural isomerism in aliphatic alkanes and geometric isomerism in alkenes. Describe structural isomerism and the different types that exist. With the aid of diagrams use the molecular formulae C5H12 and C5H10 to explain structural isomerism in aliphatic alkanes and alkenes.   Describe geometric isomerism. With the aid of diagrams use the molecular formula C5H10 to explain geometric isomerism in alkenes.