Well, it introduced atoms in this world and their functions. When the theory of atoms were created many more theory's came and we slowly figure out what the atoms do and what their functions are. The theory of an atom really surprised people because most of the people never knew the possibility of having living things inside of them.
Hope this helps.
Answer:
a or b
it is either a or be because it will get warmer but might be a little cloudy
M/s^2, its an acceleration towards an object
United States of America I think
You're off to a good start, now find the mass of H2O and put it under I mol,
then multiply 1 mol over the mass of H2O by 215 grams