How much water must be added to 40.0 g of CaCl2 to produce a solution that is 35.0 wt% CaCl2?

Which substances have the lowest melting points: ionic covalent, or metallic

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.

Nonpoint source pollution is difficult to control because it