how do the following two elements bond together cr3+ o2-
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Answer:
Cr2O3
Explanation:
To name Cr2O3
1. Determine the charge of cation from the anion (o2-).
2Cr ions + 3O2- = ? + 3(2-) = ?-6 = 0
? = +6 +6/2Cr ions = +3
Cr ion = +3 Cr+3
2. Name the cation by the element name and use a Roman numeral in parenthesis to show its charge.
Cr3+ = chromium(3)
3. Write the name of anion with -ide ending.
chromium(3) oxide = Cr2O3.
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