What happens when NaCl(aq) and AgNO2(aq) are mixed?

Question

Also, will the mass increase, decrease, or stay the same after the mixing? Why?

Thanks!

Answer 1

Do you mean AgNO3?
AgNO3(aq) + NaCl(aq) ==> AgCl(s) + NaNO3(aq)
The beginning mass = final mass.