Formation of Silicon Dioxide

Si + O2 → SiO2

概述

Silicon reacts with oxygen to form silicon dioxide (silica), the main component of sand and quartz. This is one of the most abundant reactions on Earth's surface, as silicon dioxide makes up a large fraction of the Earth's crust.

参与者

角色 物质 系数 状态
反应物 Silicon Si 1 (s)
反应物 Oxygen O 1 (g)
产物 Silicon Dioxide SiO₂ 1 (s)

日常示例

Sand on beaches and the quartz in many decorative stones are composed of silicon dioxide formed by this type of reaction.

工业重要性

热氧化法生长的SiO₂薄膜是现代半导体器件（MOSFET栅氧化层）的核心材料。石英（SiO₂）还大量用于光纤、玻璃和硅酸盐建材。

属性

类型
Synthesis
可逆
否
能量
放热
ΔH
-910.7 kJ/mol

相关反应

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Formation of Sulfur Dioxide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

What is the equation for Formation of Silicon Dioxide?
The balanced equation is: Si + O₂ → SiO₂.
What type of reaction is Formation of Silicon Dioxide?
Formation of Silicon Dioxide is a synthesis reaction.
Is Formation of Silicon Dioxide exothermic or endothermic?
Formation of Silicon Dioxide is exothermic (releases energy). The enthalpy change (ΔH) is -910.7 kJ/mol.