Alkyl Halides structure

I need help trying the following structure: a. 3-iodopropene b. trans-1-chloro-3-sec-butylcyclohexane (draw the most stable chair form) c. 1,2-dichloro-1,1,2,2-tetrafluroroethane

Anti addition

I need to paraphrase this "As a bromine molecule approaches perpendicular to the negatively charged pi cloud of the carbon-carbon double bond, its bonding electrons are repelled away from the bromine atom nearer the double bond, leaving it with a partial positive charge. As the positively charged bromine penetrates the pi cloud, ...continues

Mechanism

When (S)-2-bromopropanoic acid [(S)-CH3CHBrCO2H] reacts with concentrated sodium hydroxide, the product formed (after acidification) is (R)-2-hydroxypropanoic acid, commonly known as (R)-lactic acid. This is the normal stereochemical result for an SN2 reaction. However, when the same reaction is carried out with a low concentr ...continues

Nucleophilic Substitution

Please see attached... I chose 1-Bromo-2-methylbutane

Nucleophilic Substitution

Please see attached

Nucleophilic Substitution

Please see attached... I chose 3

Nucleophilic Substitution

Please see attached... I chose 4

Nucleophilic Substitution

Please see attached... I chose b SN2

Nucleophilic Substitution

Please see attached...I chose 3

Nucleophilic Substitution

Please see attached...I chose c