An element melts at about 100 degree centigrade and forms an oxide which reacts with water to form a solution with a pH less than 7. Which of the following statements is most likely true :

1. the element conducts electricity

2. the element has a covalent network structure

3. The oxide is basic

4. The oxide contains covalent bonds

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

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.

Why are pipes bursting in the in extremely cold weather?