When a piece of copper wire is placed in a solution of silver nitrate, in time _______ a. the solution turns redb. the solution loses its blue colorc. a silver precipitate formsd. the copper gains in mass
Copper, being more reactive than silver, forms a single replacement reaction and replaces the silver in silver nitrate. So the answer is C. Cu(s) + 2AgNO3(aq) ----> 2Ag(s) + Cu(NO3)2(aq) Assuming the oxidation state of copper is +2
