Cu(OH)₂ represents copper hydroxide, which is formed when copper reacts with hydroxide ions. It is often seen as a blue precipitate in reactions involving copper compounds.
Related terms
Precipitate: An insoluble solid formed during a chemical reaction in solution.
Solubility Rules: Guidelines used to predict whether an ionic compound will dissolve or form a precipitate in water.
Hydroxide: A polyatomic ion consisting of one oxygen atom and one hydrogen atom bonded together, carrying a negative charge.