Answer:
Manganese Oxide (IV) or Manganese Dioxide or Manganous oxide, corresponds to the formula name. See the explanation below, please.
Step-by-step explanation:
This compound corresponds to an oxide. By nomenclature of Stock is named Manganese Oxide (IV), the number IV refers to the valence of Manganese. By systematic nomenclature: manganese dioxide, and according to the traditional: manganous oxide (the bear suffix refers to lower valence of manganese)