The Covalent Compound As205 is know as diarsenic pentaoxide.
Methane
What is the name of the following Covalent Compound? N2Cl4
Prefixes in a name generally indicate the number of atoms of a certain element in a compound. For example, carbon dioxide has two atoms of oxygen and one atom of carbon.
Bromine-bromine double bond.
"-ide"
Methane
What is the name of the following Covalent Compound? N2Cl4
Covalent compounds
It comes from the covalent compound naming system. Check wikiHow (I posted the article) for "How To Name Covalent Compounds".
Prefixes in a name generally indicate the number of atoms of a certain element in a compound. For example, carbon dioxide has two atoms of oxygen and one atom of carbon.
Bromine-bromine double bond.
"-ide"
The name of the covalent bond is diphosphorus pentasulfide
The common name of this molecular compound is nitrogen trioxide and the systematic name is Nitrogen(III) Oxide.
See the links for a summary of naming covalent and ionic compounds. Actually contrary to what these links say the method of bonding does not actualy affect the way compounds are named. Lets take to simple examples, FeCl3 and PCl3 the first ionic and the second covalent. Iron trichloride, could be called iron(III) chloride (historically called ferric chloride) Phosphorus trichloride could be called phosphorus(III) chloride, or even trichloridophosphane following latest IUPAC definition.
No, Roman numerals are not used in covalent compounds. Roman numerals are used in the naming of ionic compounds to indicate the charge of a transition metal ion. In covalent compounds, the elements are combined through sharing of electrons and do not involve ions with specific charges.
As with all calcium compounds it is ionic. Though the proper chemical name is calcium peroxide in this case.