Is 3 liters of oxygen enough to burn 9.5 g of magnesium?

To understand whether there is enough oxygen, you need to find out what is in excess, and what is in deficiency, or the ratio is equal. To do this, we find the amount of oxygen, the amount of magnesium. The amount of magnesium substance is about 0.4 mol, and the amount of oxygen is about 13 mol. According to the reaction equation, magnesium is needed 2 times more than oxygen, which means that we have magnesium in excess, Therefore, 3 liters is not enough to burn 9.5 g of magnesium.

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