Which of the following does not involve colligative properties? a. when glucose concentration is greater outside the blood cell than inside the cell, water flows out of the cell. b. ethylene glycol is added to water, and the solution is used to keep ice from forming in a car’s engine. c. snowplows spread salt on cleared roadways during the winter to lower the freezing point of water and prevent melted snow from freezing. d. calcium silicide is added to liquid steel to increase the steel’s ability to freeze.