How are elements in the last column of the periodic table similar? A. They are all solids.
O B. They are all liquids.
C. They react easily.
D. They rarely react.

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided