Jill needs to test her pool to make sure it has enough chlorine in it. She put water in her test tube and then added 5 drops of the test solution. The water turned light pink. This indicates a ___. physical change, because color is a physical property. physical change, because the indicator only changed colors slightly. chemical change, because adding the solution caused the unexpected color change. chemical change, because ALL color changes indicate a chemical change.

law of conservation of matter

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.