For ionic compounds such as the one mentioned above, naming them is relatively easy. As we all know, an ionic compound consists of a metal ion(which is usually positive) and a negative ion.
Hence, the names for metallic compounds are always in the following format:
Name of metal + Name of negative ion
However, do take note that for transition metals, the oxidation state has to be included. This is because transition metals have multiple oxidation states. The oxidation state of the metal is presented by: Metal (oxidation number). For example, rust is Iron (III) oxide.
Cr2O3 is hence named chromium (III) oxide.
That would be the bichromate or sometimes called the dichromate ion. Example: Sodium bichromate (or sodium dichromate) is Na2Cr2O7.
If the formula was intended to be PCl5, the compound is phosphorus pentachloride.
The Correct Chemical Name is: xenon tetrafluoride
dialuminium trisulphide?
The correct name for the compound FeCl3 is iron(III) chloride.
Cr2O3 is known as Chromium(III) oxide. Please see the "related links" below for more information about this compound.
The compound Cr2O3 is chromium(III) oxide. It is a naturally inorganic occurring compound and it is used primarily as green pigment.
The correct compound formula for Chromium(III) oxide is Cr2O3.
Cr2O3 is an oxide.
Cr2O3 is the chemical formula for chromium (III) oxide
Cr2O3 is an ionic compound. It is composed of chromium (Cr) and oxygen (O) ions that are held together by ionic bonds.
Cr2O3 is, Chromium (III) oxide or simply Chromium oxide.
That would be the bichromate or sometimes called the dichromate ion. Example: Sodium bichromate (or sodium dichromate) is Na2Cr2O7.
"Chromium(III) oxide", or "dichromium trioxide".
The correct name for the compound NCl3 is nitrogen trichloride.
The correct name for the compound K2S is potassium sulfide.
The correct compound name for AlF3 is aluminum fluoride.