Give one example of reflection (sound or light)

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water