Explain why samples of platinum and copper can have the same extensive properties but not the same intensive properties

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Apush or pull that moves or changes and object when to objects touch

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