Which element will have the same valence electron structure as nitrogen A. Aluminum (Al)

B. Antimony (Sb)

C. Lithium (Li)

D. Oxygen (O)

What is the number of atoms in 3.54 mol s

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?

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.