Devise a mechanism for the protonation of the Lewis base below. Draw curved arrows to show electron reorganization for the mechanism step below. Make the ends of your arrows specify the origin and destination of reorganizing electrons.

If you could please provide summary of a simplistic explanation that would be extremely helpful. Thank you,

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

first one is the correct answer

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )