PLZ HELP A group of students simulates colliding air masses. Using an index card for separation, a jar of warm tap water with red food coloring is placed over a jar of cold water with yellow food coloring. The index card that separates the two bodies of water is removed. Students observe how the two fronts travel in relation to one another.

A.) Air masses are not distinguisable by color.

B.) Air masses are neither hot nor cold in temperature

C.) Air masses do not collide in real life

D.) Air masses cannot be modeled

The correct answer is "atomic weight".

Answer/// he concludes that the atom particles can be broken due to the paddle wheel being moved by particles coming out of the metal;

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.