Hydrolysis reaction of ammonium perchlorate (NH4ClO4)
NH4ClO4(aq) + H2O (l) ↔ NH4OH (aq) + HClO4(aq)
Total ionic:
NH4+(aq) + ClO4-(aq) + H2O(l) ↔ NH4OH(aq) + H+ (aq) + ClO4-(aq)
Cancelling ClO4- on both sides,
NH4+(aq) + H2O(l) ↔ NH4OH(aq) + H+ (aq)
NH4+(aq) + H2O(l) ↔ NH3 (aq) + H2O(aq) + H+ (aq)
Net ionic:
NH4+(aq) + H2O(l) ↔ NH3 (aq) + H3O+(aq)