What is the name of NaCl?
Sodium Chloride. You may know it as salt.
Edit: This is a basic ionic compound, containing a metal and a non-metal. The naming conventions for this type of compound are generally straightforward. Start with the cation (positively charged ion), which is written first, Na = Sodium. Then take the anion (negatively charged ion) and add the suffix -ide. Cl = Chlorine +ide = Chloride.
This leaves us with Sodium Chloride.