changing with factor would not have an inclusive on the kinetic energy of moving van loaded with 100 kg bags mulch worth of a total mass of 1,000 kg the vehicle is traveling cost the open parking lot at the speed of 5 m/s

Iknow the answer is a but i don't know why

How many atoms are there in 5.70 mol of mg

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?