You may have noticed that while eating ice cream on a hot day, some of the ice creams begins to melt. Is this an example of a physical or chemical change? Write an essay that provides a scientific explanation for this phenomenon. Use evidence from all of the sources listed above.

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices