Answer:
Similar names of atoms are, particles, molecule, bit. etc............im really sorry imm not quite sure if thats what you needed but i hope it helps in some way :>
Explanation:
46.875
P.E=MGH
7500=16*10*h
7500=160h
h=7500/160
h=46.875
soluble base
as alkali is a salt used as base
