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Interesting Chemistry Question (Metals And Non Metals) |
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| Jan27-10, 11:51 AM | #1 |
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Interesting Chemistry Question (Metals And Non Metals)
A 2 gram Magnesium (Mg) ribbon is burnt in air . The burnt ribbon is collected and weighed. Would it be greater than 2 grams or lesser?
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| Jan27-10, 12:04 PM | #2 |
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more than two grams because the magnesium bonds with oxygen when energy is added and forms MgO
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| Jan27-10, 12:48 PM | #3 |
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The products would be equal to the mass of the reactants as it states in the law of conservation of mass.
2Mg + O2 → 2MgO The 2 gram ribbon plus the weight of the oxygen required produces 2 grams plus the weight of the oxygen used. |
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