What is the correct IUPAC name for CuO?
copper(II) oxide
To determine the correct IUPAC name for CuO (copper(II) oxide), we need to first identify the oxidation state of copper and oxygen.
Copper is a transition metal and can have multiple oxidation states. In the case of CuO, copper has an oxidation state of +2.
Oxygen generally has an oxidation state of -2, except in peroxides where it has an oxidation state of -1.
Based on this information, we can determine the correct IUPAC name for CuO as follows:
1. Start with the name of the metal, which is copper.
2. Indicate the oxidation state of the metal in parentheses using Roman numerals. In this case, the oxidation state of copper is +2, so we write "(II)" after copper.
3. Write the name of the non-metal element, which is oxygen.
4. Use the suffix "-ide" to indicate that oxygen is in its oxide form.
5. Put everything together to form the complete IUPAC name: copper(II) oxide.
Therefore, the correct IUPAC name for CuO is copper(II) oxide.