Ni(pme3)4 reacts with phosphites , p(or)3 to produce ni(pme3)3(p( (a) what geometry do you expect for these nickel compounds (b) based on the 18 electron rule, what mechanism would you expect for the reaction the rate constant for the reaction is identical with different r groups in the phosphite. based on this result do you think the reaction follows a dissociative, associative or interchange mechanism? (10)

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.