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12 January, 12:54

Calculate the mass of oxygen that combines with 20.4g of magnesium to form 34.0g of magnesium oxide

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  1. 12 January, 12:55
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    34.0g magnesium oxide - 20.4g magnesium = 13.6g oxygen
  2. 12 January, 13:20
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    54.4 g is the answer I got
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