Question

Visit in your area and collect the following articles:
1)copper wire, 2)sulpher, 3)aluminum sheet, 4)iron nail, 5)iodine crystal
Answer the following:
(a) Classify them into metals and nonmetals
(b) Iron nail has a brown layer why is it so?
(c) Which one is a better conductor of heat?
(d) Write down the reaction of metals with water.
(e) Write down the reactions of nonmetals with water.

Answer 1

answer-
1) nonmetal- sulpher , iodine
2)it is iron oxide
3) copper
4)Fe ^2+ +water =Fe^3+
Cu+ water = ×
Al+ hot water = Aluminium hidroxide
S+water = ×
I + water = hidrogen iodide