Final answer:
The basic equilibrium equation for hydrazine, HONH₂ in water, is HONH₂(aq) ⇌ OH⁻(aq) + NH₄⁺(aq), indicating a partial dissociation into hydroxide and ammonium ions.
Step-by-step explanation:
The basic equilibrium equation for hydrazine, HONH₂, in its aqueous form, can be written as follows:
HONH₂(aq) ⇌ OH⁻(aq) + NH₄⁺(aq)
In this equilibrium, hydrazine, a weak base, partially dissociates into hydroxide ions and ammonium ions in water. It is important to note that this reaction does not go to completion, meaning it does not proceed 100% to products, and both reactants and products are present at equilibrium. To complete the equation, we must include the phases of each species: 'aq' denotes that the species is in aqueous solution.