[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule appears as a white powder or crystalline mass. Density 4.84 g / cm3. Slightly soluble in water and denser than water. Also insoluble as a hydrate. ZnF2.xH2O. Used for galvanizing steel and making ceramics."}, {"from": "gpt", "value": "[F][Zn][F]"}]