PLEASE ANSWER AWARDING 50 POINTS FOR WHO EVER IS RIGHT: Kerry made some copper sulphate crystals. She wrote a description of what
she did.
I heated some dilute sulphuric acid in a beaker and added some copper
oxide to it.
I stirred the mixture until it became a clear blue colour. I added more
copper oxide until no more would react and then filtered the mixture into
a dish.
A black solid was left on the filter paper. I left the solution in the dish for a
week and saw that the liquid had evaporated and blue crystals were left.

question: Why did Kerry Filter the mixture?

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer