Question:
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)
Solution:
(a) x = yellow precipitate, y = (aq)
(b) x = 2Ag(s)
(c) x = (aq) ; y = (g)
(d) x = heat.
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