The addition of 15 g of salt to a sample of pure water causes its freezing point to be reduced by 1.3°c. what would be the effect of dissolving an additional 15 g of salt into the solution? a. there would be no additional effect on the freezing point. b. the freezing point would be depressed (decreased) by an additional 1.3°c. c. the freezing point would be depressed by 15°c. d. the freezing point would become higher.