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Why metals are not react with …

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Why metals are not react with hot water as well as cold water?

Posted by Mohammad Arif Ansari 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 1 month ago

Sodium metal reacts violently with water. The reaction is so violent and exothermic that the evolved hydrogen immediately catches fire. The reaction is:

2Na + H₂O → 2NaOH + H₂ + heat energy

ii. Hot water:

Magnesium reacts with hot water to form magnesium hydroxide and hydrogen. The reaction is:

Mg + 2H₂O → Mg(OH)₂+ H₂

iii. Steam:

Aluminium does not react either with cold or hot water. It reacts with steam to form the aluminium oxide (Al2O3) and hydrogen. The reaction is:

2Al + 3H₂O → Al₂O₃ + 3H₂

Metals such as lead, copper, silver, and gold do not react with water at all.

4Thank You

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