Lead Displacing Silver from Silver Nitrate

Pb + 2AgNO3 → Pb(NO3)2 + 2Ag

概述

Lead metal displaces silver from silver nitrate solution, demonstrating that lead is more reactive than silver. Silver crystals deposit on the lead surface as shiny metallic needles. This was historically used in silver assaying and recovery processes.

参与者

角色 物质 系数 状态
反应物 Lead Pb 1 (s)
反应物 Silver Nitrate AgNO₃ 2 (aq)
产物 Silver Ag 2 (s)

日常示例

Jewelers and assayers historically used lead to test silver purity, exploiting the differences in metal reactivity.

工业重要性

铅-银置换反应历史上用于铜精炼阳极泥中银的湿法回收（Parkes法萃银），了解金属置换反应对设计电化学电池和电镀工艺至关重要。

属性

类型
Single Replacement
可逆
否
能量
放热
ΔH
-132.0 kJ/mol

相关反应

Aluminum Reacting with Iron(III) Oxide (Thermite) Chlorine Displacing Iodine from Potassium Iodide Magnesium Reacting with Steam Lithium Reacting with Water Aluminum Reacting with Hydrochloric Acid Aluminum Reducing Chromium Oxide (Aluminothermic) Iron Reacting with Hydrochloric Acid Iron Displacing Copper from Copper Sulfate Zinc Displacing Copper from Copper Sulfate Fluorine Displacing Chlorine from Sodium Chloride

Frequently Asked Questions

What is the equation for Lead Displacing Silver from Silver Nitrate?
The balanced equation is: Pb + 2AgNO₃ → Pb(NO₃)₂ + 2Ag.
What type of reaction is Lead Displacing Silver from Silver Nitrate?
Lead Displacing Silver from Silver Nitrate is a single replacement reaction.
Is Lead Displacing Silver from Silver Nitrate exothermic or endothermic?
Lead Displacing Silver from Silver Nitrate is exothermic (releases energy). The enthalpy change (ΔH) is -132.0 kJ/mol.