Example, Gold and copper are melted into a large bar. Gold does not react with nitric acid, but copper does. If the bar is placed in a vat of nitric acid, will all of the copper in the bar be dissolved, or will the copper in the center of the bar remain solid?
they make ca certified ones
if it is not CARB approved, that means that it will increase the emissions above an acceptable level. if you can find one with a carb sticker (california air resource board) then you are golden as long as you keep the sticker and the paper work for it.
The copper will be dissolved until all of the ions in solution are depleted and there are none left to carry on the reaction.
First: Common meaning would allow the use of the term dissolve for the *chemical reaction* that occurs between a metal and an acid. It IS a chemical reaction and so you CAN run out of acid. Second: It is almost certain that some of the copper would remain, even if the alloy produced was an atomic mixture of the two atom types. Often alloys contain multiple compositions. If some of the crystallites are insoluble in the acid and if those phases completely surround a soluble phase then the soluble phase will not be exposed to the acid and will not dissolve.
