Please let me know whether did I chose the correct answer for the following pictures. Please answer it with your knowledge not for the points, I really need this, thanks!!

How many atoms are there in 5.70 mol of mg

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

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?