How many moles of cucl2 are there if you have 650 grams of it?

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer