write the chemical equation of reaction with an example is in which the following change has taken place 1)change in colour 2)change in temperature 3)formation of precipitate
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1change in colour
3 formation of precipitate
3 formation of precipitate
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sakshi9162:
where is the 2nd one
sorry i can't help you with the 2nd question
ok
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1.displacement reaction.
ex:-Fe+CuSo4-Feso4+Cu.here the colour of copper sulphate changes from blue to fade green.
2.combination reaction.
ex:-2Mg+o2-2Mgo.here heat and light is evolved.
3.double displacement reaction.
ex:-Na2SO4+BaCl2-BaSO4+2NaCl.here barium sulphate is the precipitate.
ex:-Fe+CuSo4-Feso4+Cu.here the colour of copper sulphate changes from blue to fade green.
2.combination reaction.
ex:-2Mg+o2-2Mgo.here heat and light is evolved.
3.double displacement reaction.
ex:-Na2SO4+BaCl2-BaSO4+2NaCl.here barium sulphate is the precipitate.
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