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B2O3 + Mg +heat = 2B + MgO this is unbalanced

B2O3 + 3Mg +heat = 2B + 3MgO this is balanced

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Q: Elemental boron is produced in an industrial process by heating diboron trioxide w magnesium metal also producing magnesium oxide as a by-product How do I write an unbalanced equation for this proces?
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What is elemental magnesium?

Magnesium powder is elemental magnesium ground down to a fine powder.


What is the oxidation number of magnesium?

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