What mass, in grams, of CaCl2 will be required to prepare 2 liters of .7 M CaCl2? Molar mass of CaCl2 = 111 g/mol

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car