Diffusion between two gases occurs most rapidly if the gases areat a
a. low temperature and the molecules are small.
b. low temperature and the molecules are large.
c. high temperature and the molecules are large.
d. high temperature and the molecules are small.

D

Explanation:

Diffusion is directly propotional to temperature i.e. if the temperature is hight diffusion is more and vice versa

Moreover, diffusion is inversely propotional to size i.e. if molecules are large , diffusion is less and vice versa

the answer is minerals.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.