chemistry...?

Question

1. which metals will be able to reduce copper ions in solution?

A. Potassium
B. Sodium
C. Calcium
D. Magnesium
E. Aluminum
F. Zinc
G. Iron
H. Lead
I. Copper
J. silver
K. gold

2. will copper be able to replace zinc ions in solution?why?

3.which metal will not be able to be oxidized by any of the other meatals listed?

Not Homework, dont answer with a stupid remark if you know it I would appreciate it. just getting study material ready with practice questions!so please help if you can! Thanx to all the ones who answer respectfully.

Answer 1

1) a, b, c, d, e, f, g, h all of them are less noble than copper. However. a-d will also violently react with water

2) no because it has a higher electrochemical potential than zinc

3) don't understand the question. If you mean by that that they cannot be reduced by any of the metals listed, than it would be Li and Rb

Answer 2

Questions 1 and 2 have been correctly answered above.

Question 3 should read: Which metal cannot be oxidised by any of the metal ions in the list? And the answer is potassium.

Answer 3

This answer has something to with the Electro Chemical Series. The element before copper can displace copper from its solutions annd below ones cannot. So you need to check the electrochemical series first.

http://www.chemguide.co.uk/physical/redoxeqia/ecs.html

2. No copper cannnot replace Zinc in its solutions since its below zinc.

3. Its Lithium which appears even before Potassium in this list.