[Answer] Which type of reaction is SiO2 + HF -> SiF4 + H2O?

Answer: Synthesis and decomposition
Which type of reaction is SiO2 + HF -> SiF4 + H2O?

4 can in principle also be generated by the reaction of silicon dioxide and hydrofluoric acid but this process tends to give hexafluorosilicic acid: 6 HF + SiO 2 → H 2 SiF 6 + 2 H 2 O …

Silicon tetrafluoride – Wikipedia

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This is referred to as a redistribution reaction which is a double displacement involving the same central element. It may also be thought of as a disproportionation reaction …

Sulfur dioxide is found on Earth and exists in very small concentrations and in the atmosphere at about 1 ppm. [clarification needed]On other planets sulfur dioxide can …

Preparation. Silicon tetrachloride is prepared by the chlorination of various silicon compounds such as ferrosilicon silicon carbide or mixtures of silicon dioxide and carbon.The ferrosilicon route is most common. In the laboratory SiCl 4 can be prepared by treating silicon with chlorine:. Si + 2 Cl 2 → SiCl 4. It was first prepared by Jöns Jakob Berzelius in 1823.

Sulfur tetrafluoride is the chemica…

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