In each case tell which SN2 reaction will proceed faster. 1. The displacement by OH- on (a) CH3Br or (b) CH3I.
2. The displacement by CH3CO2- on 1-bromopropane in (a) dimethylformamide or (b) water.
For each pair of reactants below select the one that is more nucleophilic.
1.(a) BF3 or (b) F-.
2.(a) -OH or (b) -SH.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.