What is the weight of 4.30 mole of sodium

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Compare and contrast physical changes with chemical changes.

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.