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What is the mass of 0.46 mil of mgcl2

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

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