Explain why AlCl3 must be kept dry (free of water) and the glassware should be dry when performing Friedel-Crafts alkylation. Incorporate relevant chemical reaction(s) to support your answer.

Iknow #2 is d. i just need to know why

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.