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2 g of ferrous sulphate crystals are heated in a dry boiling tube(a) List any two observations.(b) Name the type of chemical reaction taking place.(c) Write balanced chemical equation for the reaction and name the products formed

Question

2 g of ferrous sulphate crystals are heated in a dry boiling tube(a) List any two observations.(b) Name the type of chemical reaction taking place.(c) Write balanced chemical equation for the reaction and name the products formed

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Solution

(a) Two observations that can be made when 2 g of ferrous sulphate crystals are heated in a dry boiling tube are:

  1. The green color of ferrous sulphate crystals changes to brown.
  2. A smell of burning sulfur is observed due to the formation of sulfur dioxide.

(b) The type of chemical reaction taking place is decomposition reaction. In a decomposition reaction, a single compound breaks down into two or more simpler substances under suitable conditions.

(c) The balanced chemical equation for the reaction is:

2FeSO4 (s) → Fe2O3 (s) + SO2 (g) + SO3 (g)

The products formed are Iron(III) oxide (Fe2O3), Sulfur dioxide (SO2), and Sulfur trioxide (SO3).

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