How many grams of phosphoric acid reach with excess calcium carbonate to produce 3.74g ca3(po4)2?

A__ is two or more substances that are together in the same place but are not chemically combined

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

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