Which drawing best represents an atom of lithium

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.

What is the subscript for oxygen in its molecular formula

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom