Formation of Sodium Chloride

2Na + Cl2 → 2NaCl

概述

Sodium metal reacts vigorously with chlorine gas to form sodium chloride, common table salt. This is a classic example of an ionic compound formation where a metal transfers electrons to a nonmetal. The reaction is highly exothermic, producing a bright yellow flame.

参与者

角色 物质 系数 状态
反应物 Chlorine Cl 1 (g)
反应物 Sodium Na 2 (s)
产物 Sodium Chloride NaCl 2 (s)

日常示例

Table salt used in cooking is produced commercially through mining or evaporation of seawater, though the direct synthesis from elements demonstrates ionic bond formation.

工业重要性

氯化钠(食盐)年产量超3亿吨,是氯碱工业(生产NaOH和Cl₂)的原料,也用于食品保存、道路除冰、皮革鞣制和化工生产。

Frequently Asked Questions

What is the equation for Formation of Sodium Chloride?
The balanced equation is: 2Na + Cl₂ → 2NaCl.
What type of reaction is Formation of Sodium Chloride?
Formation of Sodium Chloride is a synthesis reaction.
Is Formation of Sodium Chloride exothermic or endothermic?
Formation of Sodium Chloride is exothermic (releases energy). The enthalpy change (ΔH) is -411.2 kJ/mol.