Since selenium is a metalloid, and nitrogen is a nonmetal, the normal convention would require us to put nitrogen at the end, not the beginning. Se4N4 is a highly explosive compound called selenium nitride. Other forms of selenium nitride also exist, with different ratios of selenium to nitrogen.
Cobalt(II) Sulfate. As Co is Cobalt and Cu is Copper CuSO4 would be Copper (II) Sulfate
CoSO4 is the compound Cobalt(II) Sulfate
tetranitrogen tetraselenide
magnisum oxide
This is not a true compound but is mixture of Ammonium fluoride and Hydrogen fluoride , NH4F . HF
The correct name is mercury(II) sulfide.
Mick Thomson from Slipknot's full name is Mickael Gordon Thomson
You have the formula and symbols wrong but it is probably nickel acetate.
Cobalt tetraoxosulphate (vi) ion
The compound NO is called "nitric oxide". Combined with oxygen and water, it forms HNO2, or nitrous acid.
Cobalt (II) sulfate.
LiF is the chemical formula of Lithium fluoride.
The full name of the IF compound is Interferon.
Magnesium Sulfide
What_is_the_name_of_the_Compound_SrBr2
His full name was Elvis Aaron Presley
Do you mean Rafael?
hippopotamus/ hippopotamus's
The cloud is a cumulonimbus.
Ezio Auditore da Firenze