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) + 2Ag NO3(aq) ⎯→ Cu(NO3)2(aq) + x(s)
(c) Zn(s) + H2SO4(aq) ⎯→ ZnSO4(x) + H2(y)
(d) CaCO 3 (s) ⎯⎯⎯X→ CaO(s) + CO2 (g)
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Answer 1

Answer:

X= precipitate(ppt.) , Y=Gas (g)

Answer 2

Answer:

a) x = ppt.(precipitate) and y = aq.(aqueous)

b) x = Ag

c) x= aq.(aqueous) and y = g(gas)

d) x= heat(symbol is triangle)

I hope u got ur answer..