Question

Complete the missing components/variables given as x and y in the following reactions:
(i) Pb(NO₃)₂(aq) + 2KI(aq)  -----> PbI₂(x) + 2KNO₃(y)
(ii) Cu(s) + 2AgNO₃(aq) ------> Cu(NO₃)₂(aq) + x(s)
(iii) 2n(s) + H₂SO₄(aq)  ------> ZnSO₄(x) + H₂(y)
(iv) CaCO₃(s) +x -----> CaO(s) + CO₂(g)

Answer 1

(i) x - (s); y - (aq)            (ii) x-2Ag
(iii) x- (aq);y-(g)             (iv) x-Heat