Visit in your area and collect the following articles. (i) Copper wire, (ii) Sulphur, (iii) Aluminium sheet, (iv) Iron nail, (v) 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.
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metals:
aluminium sheet,iron nail.
non-mtals:
sulphur,iodine crystal
(b)iron nail gets reacted with the atmospheric oxygen and forms a brown layer called rust
(c) iron nail
aluminium sheet,iron nail.
non-mtals:
sulphur,iodine crystal
(b)iron nail gets reacted with the atmospheric oxygen and forms a brown layer called rust
(c) iron nail
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Explanation:
d). Metal + water = metal oxide + hydrogen
e).Non-metals will normally not react with water, however, non-metal oxides will react with water to form acids.
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