4.4 CHAPTER 4. ELECTROCHEMICAL REACTIONS
Exercise 4 - 5
- Predict whether thefollowing reaction willtake place spontaneously or not.
Show all your working.
2 Ag (s) + Cu2+(aq)→ Cu (s) + 2Ag+(aq)- Zinc metal reacts with an acid, H+(aq) to produce hydrogen gas.
(a) Write an equation for the reaction, using thetable of electrode potentials.
(b) Predict whether thereaction will take placespontaneously. Show your
working.- Four beakers are setup, each of which contains one of the followingsolutions:
(a) Mg(NO 3 ) 2
(b) Ba(NO 3 ) 2
(c) Cu(NO 3 ) 2
(d) Al(NO 3 ) 2Iron is added to each ofthe beakers. In which beaker will a spontaneousreaction
take place?- Which one of the following solutions can bestored in an aluminiumcontainer?
(a) Cu(SO) 4
(b) Zn(SO) 4
(c) NaCl
(d) Pb(NO 3 ) 2More practice video solutions or help at http://www.everythingscience.co.za(1.) 01qx (2.) 01qy (3.) 01qz (4.) 01r0