Select the correct answer from each drop-down menu. What causes atoms to form covalent bonds?
In a covalent bond, two atoms are held together by the attraction between
covalent bonds that an atom can form depends on the number of
v. The number of
v In the atom.

Light waves travel than sound waves.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.