"The reaction between aqueous solutions of Cu(NO3)2 and KI form CuI and I2. The CuI precipitates from the reaction as a solid, and the other products (KNO3 and I2) remain in aqueous solution.
Write a balanced molecular equation for the overall reaction, using the smallest whole number coefficients, including the states of matter for each reactant and product."
The only answer I can think of is
Cu(aq) + I(aq) -> CuI(aq) , which I found by removing the spectator ions and keeping the molecules which are necessary for precipitation.
Can someone help me understand how to do this please?