Question

If any of the following reactions occurs spontaneously, write the balanced net ionic equation. If not, write no reaction (a)Pb + Zn2+_____ Pb2+ + Zn (b)Fe + H+ _____ Fe2+ + H2 (c)Cu + Ag+ _____ Cu2+ + Ag (d)Cr + Zn2+ _____ Cr3+ + Zn​

Answer 1

Answer:

This question is basically from the chapter "Electrochemistry."

Electrochemistry-  It is a study of chemical process in chemistry which involves the movement of electrons through chemical process.

a)  Pb2+(aq) + Zn(s)  →  Pb(s) + Zn2+(aq)

b) 2 H+(aq) + Fe(s) → H2(g) + Fe2+(aq)

c) C  u + 2Ag+→ Cu2+ + 2 Ag+

d) No reaction.

So , these are the basic reactions which helps us to find the cell potential Ecell and others electrochemistry factors.

Answer 2

Answer:(a)Pb+ (aq)+zn(s)–--- Pb (s)+Zn2 (aq)

(b) 2h+ (aq) +Fe(s) ------ H2(g) + Fe 2+(aq)

(C) Cu + 2Ag+ ------ Cu2 + 2g+

(d) No reaction

Explanation: