What is the concentration expressed in parts per million of a solution containing 15.0 grams of KNO3 in 65.0 grams of H2O?

How air particles exert a pressure on the inside of the balloon

What is the mass of each element in a 324.8 sample of co2

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.