. 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) + 2Ag NO3 (aq) → Cu(NO3 ) 2 (aq) + x(s)
 
(c) Zn(s) + H2 SO4 (aq) → ZnSO4 (x) + H2 (y)
 
(d) CaCO3 (s) →x CaO(s) + CO2 (g)
 

Best Answer

Answer: (a) Pb(NO3 ) 2 (aq) + 2KI(aq) → PbI2 (s) + 2KNO3 (aq)

(b) Cu(s) + 2Ag NO3 (aq) → Cu(NO3 ) 2 (aq) + 2Ag(s)
 
(c) Zn(s) + H2 SO4 (aq) → ZnSO4 (aq) + H2 (g)
 
(d) CaCO3 (s) →heat→ CaO(s) + CO2 (g)
 
1. x(s), y (aq)
2. x is 2Ag
3. x-(aq) y(g)
4. x is heat

Talk to Our counsellor