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in Chemistry by (58.2k points)

Write balanced equations for the reaction of: 

(i) aluminium when heated in air. Write the name of the product. 

(ii) iron with steam. Name the product obtained. 

(iii) calcium with water. Why does calcium start floating in water?

1 Answer

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Best answer

The product formed is aluminium oxide.

(ii) 3Fe + 4H2O (steam) → Fe3O4 + 4H2

The product obtained is iron (II) iron (III) oxide.

Ca + 2H2O → Ca (OH)2 +H2

(iii) The bubbles of hydrogen stick to the surface of metal that is why it floats.

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