Which of the following is an example of a pure substance? * 1 point
Iron shavings
Trail mix
Sodium Chloride mixed with sand
Solution of hydrochloric acid and water

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