9.What are the differences between alkanes and alkenes in terms of physical and chemical properties?

Answer 1

Alkenes have a double carbon bond and fewer hydrogen atoms in the molecule. So they contain more chemical energy than the corresponding alkane because the two carbon bonds are strained. Because the molecules are lighter than the corresponding alkanes they have lower boiling points. They are more chemically reactive because of the strained C=C bonds.

Answer 2

Lol, more chemical energy and more boiling points, can't get enough of that. The physical properties of alkenes are comparable with alkanes. The physical state depends on molecular mass. The simplest alkenes, ethylene, propylene and butylene are gases. Linear alkenes of approximately five to sixteen carbons are liquids, and higher alkenes are waxy solids. Alkenes are more reactive than alkanes since they can undergo addition reactions and polymerization. Alkanes are saturated compounds that can undergo halogenation and combustion reactions. Alkanes DO NOT undergo substitution reactions.

Answer 3

Alkanes are saturated compounds with single bonds. So they are more stable than alkenes which are unsaturated with their double bonded carbon atoms. The alkanes have more melting and boiling points than alkenes. They are less reactive. Alkanes undergo substitution reactions whereas the alkenes undergo addition reactions easily.

Answer 4

Chemical properties is any material's properties that become apparent during a chemical reaction. Chemical properties cannot be judged by looking at the substance. Physical properties are details that distinguish a substance from another without changing it's identity (form).

Answer 5

I'd suggest you read the textbook.