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The oxidation number of Ca is 0 in its elemental form and is +2 in its compounds.

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12y ago
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11y ago

0 in elemental form

+2 in compounds

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6y ago

The carbide ion, (C≡C)−2 , has a formal charge of −2 . The oxidation numberof each C is −I

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6y ago

The oxidation number of the ion Ca2+ is +2.

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11y ago

+2 for Ca, -2 for O

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11y ago

+2.

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Q: What is the oxidation number for CaC2?
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