(a) what is meant by diffusion? give one example of diffusion in gases. (b) why do gase diffuse very fast?
(d) Name two gases of air which dissolve in water by diffusion. what is the importance of this process in nature?
please answer it fast

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons