Question

what is the name of this binary molecular compound? co carbon monoxide calcium monoxide carbon oxide monocarbon monoxide

Explanation:

Binary molecular compounds naming rules: The first element is named as is, the second element has its ending changed to -ide. For one atom of the first element, the prefix mono - is usually omitted. Here, the first element is carbon (C), the second is oxygen (O). Since there is one carbon (prefix mono - omitted for first element) and one oxygen (prefix mono - used for second element as per naming rules for binary molecular compounds).

Answer:

carbon monoxide