Sodium Reacting with Water

2Na + 2H₂O → 2NaOH + H₂

Visão geral

Sodium metal reacts violently with water to produce sodium hydroxide and hydrogen gas. The reaction is so exothermic that the hydrogen often ignites, burning with a yellow flame from sodium vapor. The sodium dashes across the water surface as a molten ball due to the heat generated.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Sodium Na	2	(s)
Reagente	Water H₂O	2	(l)
Produto	Hydrogen H	1	(g)
Produto	Sodium Hydroxide NaOH	2	(aq)

Exemplo do cotidiano

Videos of alkali metals being thrown into water are popular science demonstrations, showing sodium's dramatic reaction with water.

Importância industrial

Compreender a reatividade sódio-água é fundamental para o manuseamento seguro do sódio metálico na indústria cloro-alcali, reatores nucleares (arrefecimento com sódio) e armazenamento químico.

Propriedades

Tipo: Single Replacement
Reversível: Não
Energia: Exotérmico
ΔH: -368,6 kJ/mol

Reações relacionadas

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Frequently Asked Questions

What is the equation for Sodium Reacting with Water?

The balanced equation is: 2Na + 2H₂O → 2NaOH + H₂.

What type of reaction is Sodium Reacting with Water?

Sodium Reacting with Water is a single replacement reaction.

Is Sodium Reacting with Water exothermic or endothermic?

Sodium Reacting with Water is exothermic (releases energy). The enthalpy change (ΔH) is -368.6 kJ/mol.