Final answer:
The chemical formula for the product formed when ethanoic acid reacts with ammonia is NH4COOCH3 (d).
Step-by-step explanation:
The chemical formula for the product formed when ethanoic acid reacts with ammonia Ethanoic acid (CH₃COOH) reacts with ammonia (NH₃) to form the salt ammonium acetate (NH₄COOCH₃).