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Silver: reactions of elements. Reaction of silver with air. Silver metal is stable in clean air under normal conditions. Reaction of silver with water. Silver does not react with clean water. Reaction of silver with the halogens. The thermally stable silver difluoride, silver(II) difluoride, AgF2, is formed in the reaction of silver metal and fluorine, F2. Reaction of silver with acids. Silver metal dissolves in hot concentrated sulphuric acid.
Nickel metal does react with fluorine gas, F 2, but only slowly. This makes nickel an important metal for containers of fluorine. The dichloride, NiCl 2, dibromide, NiBr 2, and diiodide, NiI 2, are formed in the reactions of nickel metal and chlorine, Cl 2, bromine, Br 2, or iodine, I 2.eaction of nickel with air. Nickel metal does not react with air under ambient conditions. Finely divided nickel metal reacts readily with air and in this form may be pyrophoric.