What is the correct set of coefficients used to balance the equation below? __AI(NO3)3 + __K2CO3 → __Al2(CO3)3 + __KNO:

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