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15-05-2021
Biology

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2. Which mass of oxygen combines with 12 g of magnesium?(N04.18)
A 49
B 89
C 16 g
D 32g
mewheetod 40

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15-05-2021

Explanation: Magnesium and oxygen combine in the ratio of 3 : 2 by mass to form magnesium oxide. How much oxygen is required to react completely with 12 g of magnesium? Ans: Magnesium (Mg) and Oxygen (O) combine in the ratio = 3:2 to form compound magnesium oxide (MgO).

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