A BLUE COLOURED SUBSTANCE ON HEATING GIVES A BLACK COLOURED SUBSTANCE AND TWO GASES A REDDISH BROWN GAS AND A COLOURLESS, ODOURLESS AND NEUTRAL IN NATURE
ANSWER THE FOLLOWING QUESTIONS ACCORDING TO THESE OBSERVATIONS:
(I) Write formula of the reactants and the products
(II) Write a balanced chemical reaction
(Ii) What kind of chemical change is this
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On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas(X) and a brown gas Y is formed.
The chemical reaction involved and the balanced chemiacal equation is :
2Cu(NO
3
)
2 (S)
Heat
2CuO
(S)
+4NO
2(g)
+O
2(g)
The product formed are copper oxide(black), nitrogen dioxide(brown) and oxygen gas(colourless gas).
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