Question

Write a balanced equation for the given reaction by predicting the products. Include
the physical state of each reactant and products and name them.
When a green iron salt is heated strongly, its color finally changes to reddish brown
residue and odor of burning sulfur is given out along with the liberation of a pale
yellow color gas.
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Answer 1

Answer:

A)the name of the salt:

The Iron salt in this case is Iron Sulphate( commonly existing as Iron sulphate heptahydrate and known as ferrous sulphate or  green vitriol)

b) type of reaction:

The reaction that take place when iron sulphate is heated is known as thermal decomposition. A decomposition reaction

The iron sulphate decomposes to give Iron(III)oxide, sulphur dioxide and sulphur trioxide.

c)The chemical equation.

      2 FeS04(s) ----------> Fe2O3 (s) + SO3(g) + SO2(g)

The burning sulphur smell is due to the sulphur oxides while the black compound is ferric oxide; which can have varied colors ranging between brown, red, yellow or orange color

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