Here's why:

* Covalent bonds involve the sharing of electrons between atoms. Sucralose is composed of carbon, hydrogen, chlorine, and oxygen atoms, all of which are nonmetals. Nonmetals tend to form covalent bonds by sharing electrons.

* Ionic bonds involve the transfer of electrons from one atom to another, creating ions with opposite charges that are attracted to each other. Splenda doesn't have a metal atom, which is typically required for an ionic bond.

Therefore, since Splenda is made up of nonmetals sharing electrons, it is a covalent compound.