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Al2S3. Obviously, the 2 and 3 are subscript. The reason this happens is because of the bonding ratio: there are 3 S ions required to balance 2 Al ions.

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15y ago
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12y ago

Since aluminum cations are trivalent and sulfide anions are divalent, the formula is Al2S3, so that the charges balance.

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11y ago

Al2S3

Aluminum sulfide.

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6y ago

Aluminium sulfide has the chemical formula Al2S3.

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15y ago

Al2S3

Name: Aluminum sulfide

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12y ago

Al2S3

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Q: What is the chemical formula for the ionic compound formed from aluminum and sulfur?
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