Clocks or descendents.
non of your business
The Roman numeral system
No, a Roman numeral should not be used when naming H2O. The chemical name for H2O is water, and it does not require a Roman numeral because it is a simple molecular compound. Roman numerals are typically used in naming ionic compounds to indicate the oxidation state of transition metals, which is not applicable in the case of water.
That already is a roman numeral.
Cu2So4
1 is not a Roman numeral, you numeral should be written as XVIII and it represents the number 18
E is not used as a symbol in the roman numeral system.
The Roman numeral is XVI. There should be a bar over the X to indicate 10000.
Copper sulfate is not a number, it is a chemical. Roman numerals would not be applicable.
The Roman numeral system was first used by the Etruscans who once ruled the Romans.
Compounds which contain transition elements. cu2so4
'k' is not a Roman numeral. It is used to designate kilometer(s), or 1000.