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Emmaly
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Solid magnesium reacts with oxygen gas to produce 568g of solid magnesium oxide.
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0.3: put zero at end. Now it´s 0.30 same for 0.5=0.50 what numbers are in between 30 and 50? ex: 40 and 45 0.40=40/100=2/5 0.45=45/100=7/20
