"Electrophilic Addition of Hydrogen Halide to Alkenes SYMETRICAL

Question 1

What is the electrongeativity of hydrogen halides?

Answer 1

= halides are more elecrotonegative- partial negative charge
= halogens are less electronegative- partial positive charge

Question 2

What is an electrophile?

Answer 2

= positive ion or molecule
= attracted to a negative charge of electrons

Question 3

What happens in this reactions mechanism?
= step 1

Answer 3

= positive charge on hydrogen atom attracts the pair of electrons in the pi bond
= pair of elecyrons moves towatds the hydrohen atom
= hydrogen can only have 1 covalent bond
= pair of electrons between hydrohen abd bromine go to the bromine atom- hetrolytic fission
=

Question 4

What happens in this reactions mechanism?
= step 2

Answer 4

= we have a a carbon atom with a positive charge- carbon cation intermediate
= negative charged halide ion
= attraced to the positive carbon atom
= froms a covalent bond
=