The equation for the reaction of copper with chlorine gas to produce solid copper(I) chloride is:

Cu (s) + 1/2 Cl₂ (g) → CuCl (s)

Here's a breakdown:

* Cu (s): Solid copper

* Cl₂ (g): Chlorine gas

* CuCl (s): Solid copper(I) chloride

Important Note: This reaction produces copper(I) chloride, not copper(II) chloride.

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