Calculate for the following reactions

() () + −() → +() + ()

() () + −() → −() +
1/2()

will either of the above metals, Sn or Ag, spontaneously dissolve in acid solutions?​

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Ibelieve the answer 4 moles