Complete the missing components/variables given as x and y in the following reactions
A. Pb(NO3)2 (aq) + 2KI(aq) ———>PbI2(x) + 2KNO3(y)
B. Cu(s) + 2AgNO3(aq) ————> Cu(NO3)2(aq) + x(s)
C. Zn(s) + H2SO4(aq) ———–> ZnSO4(x) + H2(g)
D. CaCO3(s) ————> CaO(s) + CO2(g)
Answer:A
Complete the missing components/variables given as x and y in the following reactions
A. Pb(NO3)2 (aq) + 2KI(aq) ———>PbI2(x) + 2KNO3(y) B. Cu(s) + 2AgNO3(aq) ————> Cu(NO3)2(aq) + x(s) C. Zn(s) + H2SO4(aq) ———–> ZnSO4(x) + H2(g) D. CaCO3(s) ————> CaO(s) + CO2(g)