Formation of Silicon Dioxide
Si + O2 → SiO2
Visão geral
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.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Silicon Si | 1 | (s) |
| Reagente | Oxygen O | 1 | (g) |
| Produto | Silicon Dioxide SiO₂ | 1 | (s) |
Exemplo do cotidiano
Sand on beaches and the quartz in many decorative stones are composed of silicon dioxide formed by this type of reaction.
Importância industrial
O dióxido de silício é essencial para o fabrico de vidro, produção de semicondutores, revestimentos óticos e como agente antiaglomerante em alimentos e produtos farmacêuticos. A sílica ultrapura é crítica para fibras óticas.
Propriedades
- Tipo
- Synthesis
- Reversível
- Não
- Energia
- Exotérmico
- ΔH
- -910,7 kJ/mol
Reações relacionadas
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.