A compound X pale green in colour , when heated it produces a colourless residue left in the test tube.
a-name the x and write its chemical formula.
b-name the gas and residue produced.
c-write the balanced chemical equation for this equation.
Answers
Answer:
The green colour substance is Ferrous sulphate.
When ferrous sulphate is heated strongly, it decomposes to form ferric oxide, sulphur dioxide and sulphur trioxide :
2FeSO4(s) −→heat Fe2O3(s) +SO2(g) + SO3(g)Ferrous sulphate Ferric Oxide Sulphur Sulphur(Green Colour) (Brown Colour) dioxide trioxide
This is a decomposition reaction since one substance is splitting up into three substances. In this reaction , the green colour of ferrous sulphate changes to brown due to the formation of ferric oxide . A smell of burning sulphur is obtained due to the the formation of sulphur dioxide.
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Answer:
ferrous sulphate is the green colour substance
Explanation:
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