Well did u ever wonder what's invisible but you wish people could see​

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

How many peaks will be present in a mass spectrum for brcl?

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