Lead Displacing Silver from Silver Nitrate

Pb + 2AgNO3 → Pb(NO3)2 + 2Ag

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Chất phản ứng Lead Pb 1 (s)
Chất phản ứng Silver Nitrate AgNO₃ 2 (aq)
Sản phẩm Silver Ag 2 (s)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Lead cementation was used in historical silver refining processes. Understanding metal displacement is essential for designing electrochemical cells.

Tính chất

Loại
Single Replacement
Thuận nghịch
Không
Năng lượng
Tỏa nhiệt
ΔH
-132,0 kJ/mol

Phản ứng liên quan

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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.