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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
Na + H2 O →
Complete and balance the following chemical equations:
Fe `"SO"_4` + NaOH `→`
(aq.) (aq.)
TRUE \ FALSE
A precipitation reaction takes place only in a solution.
Balancing a chemical equation is based on
Out of sodium and sulphur which is a metal? Explain its reaction with the oxygen.
Give a chemical test to distinguish between the following gases.
H2 and O2
What do you observe when CO2 is passed through lime water first and then a little in excess.
Silver articles turning black: ______:: Boiling of H2O: physical change ______.
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.
What changes do you expect?
How can we prevent rusting?
