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Write the formula for an ionic compound formed from O2− with each of the ions.
magnesium ion :
sodium ion :
aluminum ion

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pstnonsonjoku

An ionic compound is formed by exchange of valency between bonding ions.

The formula of  an ionic compound formed from O2− with;

  • magnesium ion is MgO
  • sodium ion is Na2O
  • aluminum ion is Al2O3

Magnesium ion has a charge of 2+ and oxygen ion has a charge of 2-, when the two are combined, we obtain a compound of formula MgO.

Sodium ion has a charge of +1 and oxygen ion has a charge of 2-, when the two are combined, we obtain a compound of formula Na2O.

Aluminium ion has a charge of +3 and oxygen ion has a charge of -2, when the two are combined, we obtain a compound of formula Al2O3.

Learn more: https://brainly.com/question/11527546

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