Summarize the results obtained by the researchers. In your summary, compare the wear caused
by the two alloys, compare the wear caused by the alloys to that caused by the plastic control,
and compare the wear experienced by the cup to the wear experienced by the head.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

the answer is na (sodium)

c) should be the answer.

hypostyle hall;