Diffusion occurs due to differences in a) size b) concentration c) temperature d) collisions

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Is powdered sports drink ionic or covalent ? 10pts !