The results of a classroom group activity performed to test the acidic or basic nature of two substances are shown in the table. Which of the following is true about the nature of the two substances

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.