4.7.2 Reactions of alkenes and alcohols Flashcards
What are alkenes?
Alkenes are hydrocarbons with a double carbon-carbon bond.
What is the general formula for alkenes?
The general formula for alkenes is CnH2n.
Why are alkenes considered unsaturated?
Alkenes are unsaturated because they contain two fewer hydrogen atoms than the corresponding alkane.
What are the first four members of the alkene series?
The first four members are ethene, propene, butene, and pentene.
How can alkene molecules be represented?
Alkene molecules can be represented in various forms, such as C3H6.
What functional group do alkenes contain?
Alkenes contain the functional group C=C.
How do alkenes react in combustion?
Alkenes react with oxygen in combustion reactions, often burning with smoky flames due to incomplete combustion.
What happens to the double bond in alkenes during addition reactions?
The double bond becomes a single carbon-carbon bond when alkenes react with hydrogen, water, and halogens.
What functional group do alcohols contain?
Alcohols contain the functional group –OH.
What are the first four members of the alcohol series?
The first four members are methanol, ethanol, propanol, and butanol.
What happens when alcohols react with sodium?
Students should be able to describe the reactions of the first four alcohols with sodium.
What is produced when sugar solutions are fermented using yeast?
Aqueous solutions of ethanol are produced when sugar solutions are fermented using yeast.
What functional group do carboxylic acids contain?
Carboxylic acids contain the functional group –COOH.
What are the first four members of the carboxylic acid series?
The first four members are methanoic acid, ethanoic acid, propanoic acid, and butanoic acid.
What happens when carboxylic acids react with carbonates?
Students should be able to describe the reactions of the first four carboxylic acids with carbonates.
Why are carboxylic acids considered weak acids?
Carboxylic acids are weak acids due to their ionization and pH characteristics.
