Question

In the reaction, Cu (s) + 2Ag(NO3) (aq) → 2Ag (s) + Cu(NO3)2 (aq), which reactant is a solid?
A: Cu

B: Ag(NO3)

C: Ag

D: Cu(NO3)2

Answer 1

see the subscripts u have written forward of each reactant & product, they tells us about the states of the reactants.

Answer 2

\[Cu_\color{red}{\underline {(s)}}\] here s depicts solid state

Answer 3

understood ??