How do you write a chemical equation for NH4NO3?

Is it...

NH3 + H2O= NH4 + OH

Do you mean FOR the production of NH4NO3 or to USE NH4NO3? In either case it isn't what you projected.

To write a chemical equation for NH4NO3, you need to correctly represent the reactants and products involved in the chemical reaction. NH4NO3 is a compound that consists of ammonium ions (NH4+) and nitrate ions (NO3-).

When NH4NO3 dissolves in water, it dissociates into its respective ions. Therefore, the correct chemical equation for the dissociation of NH4NO3 in water will be:

NH4NO3 (s) → NH4+ (aq) + NO3- (aq)

In this equation, 's' represents the solid state, and 'aq' represents the aqueous state (dissolved in water).

Please note that NH4NO3 does not react with water to form ammonium hydroxide (NH4OH) as you mentioned in the example equation NH3 + H2O = NH4+ + OH-. NH4NO3 directly dissociates into its ions when it dissolves in water.