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प्रश्न
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Write a word equation for the chemical change, if any.
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उत्तर
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संबंधित प्रश्न
Complete and balance the following chemical equations:
N2 + O2 →
Explain the following reaction with one suitable example of Combination reactions .
Name the type of chemical reaction shown by the following equation:
CaCO3 → CaO + CO2
Complete and balance the following reaction:
\[\ce{Pb(NO3)2 ->[\Delta]}\]
Complete the table given below.
| Heat on Zinc nitrate | Colour of residue |
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Ammonium dichromate.
Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
Give an example where heat, light, and sound are produced during a chemical change.
______ is the chemical name of limestone.
