georgio wants only the best for his clients in his salon. He wants to know which brand of hair dye lasts the longest. what is his independent variable?

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.

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer