Chemistry Practice Problems Ionic and Covalent Bonds Practice Problems Solution: Which of the following formulas is incorrect?1. K2...

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Solution: Which of the following formulas is incorrect?1. K2O            2. Al 2S3            3. MgO            4. BaF

Problem

Which of the following formulas is incorrect?

1. K2O            

2. Al 2S3            

3. MgO            

4. BaF