What example of mixture could be seperated using two or more techniques? Explain your answer

You can take two liquids of different densities (how much mass is in a given volume) and pour them into a funnel. An example is oil and water. When the mixture settles, the denser liquid will be at the bottom, and drips through the funnel first. This is a separation that you can just let occur naturally.

30litre of li2o is 1.0002mole approximately 1 mole