Definition: This is a substance that cannot be broken down further by chemical means. Example: sodium, tungsten, iodine

Which statement best describes the flow of energy in this scenario

What type of reaction fuels the processes seen here?

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m