Look at the values that were calculated in the bottom row of table a. compare the percentage of mass remaining for each sample to determine which factors examined in the lab had an effect on the rate of weathering. document these initial observations in table b.

Higher temperature = molecules move around faster. and vice versa.

Ithink the answer is b.

Van der waals forces are temporary electromagnetic forces established between uncharged atoms. some neutral molecules, when close together, can become temporarily “charged,” as electrons move around the atom. water is a polar molecule, the side of the molecule that the hydrogens bond to being more positive, and the opposite side bound to the lone pairs of electrons being more negative. this means that it participates in dipole-dipole interaction (non-polar exhibits dispersion forces), and it has the capacity for hydrogen bonding.