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What is the name for cu2 plus cl1?
The compound formed from Cu²⁺ and Cl⁻ ions is called copper(II) chloride. In this compound, two chloride ions combine with one copper ion to balance the charges, resulting in the chemical formula CuCl₂. Copper(II) chloride is commonly found in both anhydrous and hydrated forms.
What if the negative sign is outside the exponet?
im not sure that is possible what you are saying is that 63- I have never seen this in my 8 years since first taking algebra. the negative sign outside the exponent can mean a negative charge on chemistry. lets say you have a copper ion... copper = Cu2- this means is has two extra electrons that it wants to share
When do you need to use a roman numeral in the name of a compound?
Typically use use the Roman numeral with a metal after a metal in an ionic compound to indicate which ion is indicated in the compound. The reason for this is that many metals can form more than one kind of ion. For example, copper can form Cu+ ions or Cu2+ ions, and iron can form Fe2+ ions and Fe3+ ions.
