Which of the following statements is true about ionic and covalent bonding? I--One or more pairs of electrons are shared in covalent bonding
II--Ionic bonding results in the formation of molecules
III--Covalent bonding produces separate charge particles
IV--Ionic compounds are composed of metallic and nonmetallic elements
V-- There is a sea of free moving electrons in ionic bonding

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices