Pentasulfur monoxide is S50.
Aluminum is the element found in a compound called bauxite.
No compound has the formula PC15. However there is PCl5,which is called phosphorus pentachloride.
disodium monoselenide
This is a covalent compound.
Nitrogen di-oxide
Sulphur forms compound called sulphides, sulphates, sulphites and others
this is called, pacholskybutthole
When a compound lacks water, it is called anhydrous.
The natural compound of a metal is called Ore.
If it is a molecular compound, the smallest unit is called a molecule. If it is an ionic compound, the smallest unit is called a formula unit.
There are NO names for the given symbols/letters offered. However, if you mean MgS , NH4Cl , & K2O MgS is Magnesium sulphide NH4Cl is Ammonium chloride K2O is Potassium oxide. NB When writing chemical formula, single letter elemental symbols are ALWAYS a CAPITAL letter. Two letter elemental symbols are first letter is a CAPITAL letter and the second letter is small/lower case. This is the recognised IUPAC international standard, and as shown in the Periodic Table.
The individual leaflets of a compound pinnate leaf are called leaflets.
This compound is called calcium permanganate.
This substance is called indicator.
Compounds
The compound BiF5 is called bismuth pentafluoride.
Aluminum is the element found in a compound called bauxite.