What new characteristic did John Dalton add to the model of the atom? A) An atom is a round, solid mass B) An atom has a massive, positive center C) An atom is made up of smaller particles D) An atom can join with other kinds of atoms

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.