3. Are liquids X and Y in questions 41 - 43 the same liquids? (Hint: Choose ONE.) Yes because they have the same mass. Yes because they have the same density. Yes because they have the same volume. No because they have different densities.

Water ionizes by the equation h2o(l)⇌h+(aq)+oh−(aq) the extent of the reaction is small in pure water and dilute aqueous solutions. this reaction creates the following relationship between [h+] and [oh−]: kw=[h+][oh−] keep in mind that, like all equilibrium constants, the value of kw changes with temperature.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount