Q1.
Tungsten (W) is a metal.
Tungsten is extracted from tungsten oxide (WO3).
All other solid products from the extraction method must be separated from the tungsten.
The table below shows information about three possible methods to extract tungsten from tungsten oxide.
Evaluate the three possible methods for extracting tungsten from tungsten oxide. ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________
___________________________________________________________ (4)

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