Why do gamma rays have no charge?

a. they are not made of protons, neutrons, or electrons

b. they have equal numbers of protons and neutrons

c. they are constantly emitting all their protons and electrons

What are the chemical names of these compounds? ke: mg3n2: reset next

Why is the melting of ice a physical change ?

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