Final answer:
The covalent compound N₂O₅ is named dinitrogen pentaoxide, adhering to the nomenclature rules of covalent compounds with prefixes indicating the number of each atom.
Step-by-step explanation:
The name of the covalent compound N₂O₅ is dinitrogen pentaoxide. When naming covalent compounds, the prefixes indicate the number of atoms of each element present. For N₂O₅, 'di-' signifies two nitrogen atoms and 'penta-' indicates five oxygen atoms. It's important to note that while memorizing common names is useful, in this case, the systematic name follows the standard nomenclature rules for covalent compounds.