Could the gollowing reaction occur 3Ni plus 2AuBr3 3NiBr2 plus 2Au?

Yes, the reaction between nickel (Ni) and gold(III) bromide (AuBr₃) can occur. In this reaction, nickel displaces gold due to its higher reactivity, forming nickel(II) bromide (NiBr₂) and elemental gold (Au). The balanced equation represents a single displacement reaction, where a more reactive metal displaces a less reactive metal from its compound. Therefore, the reaction is plausible under appropriate conditions.