What would be the new pressure if 250. сm of gas at 25.0°C and 730. mmHg pressure were changed to 150. cm' and 300°C?

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth