Some ocean currents are caused by differences in the density of water from place to place around the globe. what two factors cause differences in ocean water density

In an oxidation-reduction reaction, oxidation is what happens when a reactant

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

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution