Q21Multiple choice
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) + H2SO4(aq) ⎯→ ZnSO4(x) + H2(y) x → CaO(s) + CO (g)
- (d)CaCO3(s) ⎯⎯⎯ 2
Show answer
(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) + H2SO4(aq) ⎯→ ZnSO4(x) + H2(y) x → CaO(s) + CO (g)
(d) CaCO3(s) ⎯⎯⎯ 2