Which of the following relations is correct? A. Core electrons = Noble gas abbreviated notation - valence electrons

B. Noble gas abbreviated notation = [noble gas core] + atomic number

C. Core electrons = atomic number + valence electrons

D. Noble gas abbreviated notation = [core electrons] - [valence electrons]

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.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.