5. Pure water can be described as. (Check all that apply) Mixture
Pure substance
Element
Compound
Heterogeneous mixture
Homogeneous mixture

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.

Draw the lewis dot structure for each of the following polyatomic ions

Who discovered a pattern to the elements in 1869?