A common experiment in chemistry classes is comparing mass and volume of different objects

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false