Here's why:
* Copper is a relatively unreactive metal. It sits below hydrogen in the reactivity series, meaning it is less reactive than hydrogen and won't displace it from water.
* Water is a stable molecule. It requires a lot of energy to break the bonds between hydrogen and oxygen.
However, there are some specific conditions where a reaction can occur:
* High temperatures: At very high temperatures (above 1000°C), copper can react with steam to form copper(II) oxide and hydrogen gas. This is a very slow process, and the reaction is not typically considered a normal chemical reaction.
* Presence of other substances: If other substances like oxygen are present in the water, copper can corrode (oxidize) over time. This is a complex process that involves the formation of copper oxides and hydroxides, not a simple reaction with water alone.
Therefore, the balanced chemical equation for the reaction between copper and water is essentially:
Cu + H₂O → No reaction
Note: There is no standard reaction between copper and water, as it is thermodynamically unfavorable under ordinary conditions.