What are the proper techniques for using cuvettes (choose all that apply). Group of answer choices The cuvettes should be filled only 1/2 way with solution The cuvettes should not be labelled in any way The cuvettes should be washed with DI water only The cuvettes should be cleaned before you transfer your solutions You must label the cuvettes 1-5 with a sharpie so you don't mix up your samples when going to the computer room