By Team Aakash Byju's | 12th January 2023
Sodium metal dropped in water?
Sodium metal heated in a free supply of air?
Sodium peroxide dissolves in water?
A
B
C
What happens when sodium metal dropped in water?
An exothermic reaction takes place when sodium metal is placed into water.
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As a result, the evolved hydrogen gas catches fire.
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2Na(s) + 2H O (I) → 2NaOH(aq) + H
2
2
What happens when sodium metal heated in a free supply of air?
Sodium peroxide and Sodium oxide are formed when sodium metal is heated in a free supply of air.
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2Na(s) + 2O (g) → Na O(s) minor product Na O (s) + 2H O (I) → 2NaOH(aq) + H O (I)
2
2
2
2
2
2
2
What happens when sodium peroxide dissolves in water?
Hydrogen peroxide is formed when sodium peroxide dissolves in water.
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Na O (s) + 2H O (l) → 2NaOH(aq) + H O (l)
2
2
2
2
2