True or false. when a chemical change occurs the poducts have greater mass than the reactants.

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

Which of the following is a physical property flammability heat of combustion solubility and toxicity

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)