What’s another term for weak solutions

How many atoms are there in 5.70 mol of mg

The identities of substances are the same before and after which type of change

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