Answer:
- ClO₂: it is chlorine dioxide.
- ClO₂⁻: it is the chlorite ion.
Step-by-step explanation:
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In this case, since Cl stands for chlorine and O stands for oxygen, being the first compound an oxide and the second one an ion, we can reason:
- ClO₂: it is chlorine dioxide and as its name indicates it, it is an oxide with neutral charge, actually, a molecular compound formed by one chlorine atom and two oxygen atoms.
- ClO₂⁻: it is the chlorite ion in which chlorine has +3 as the oxidation state and therefore it is not neutral but negative as it is ready to bond with a positive ion (cation).
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