QUESTION 9: Metals react with oxygen gas to form metal oxide. For example, magnesium reacts as follows: 2Mg(s) + 02(g) → 2M90(s). What is the limiting reagent? G: 1.40g 02 G: 4.20g Mg мм: 1тol 0, %3D 32g 0, MM: 1mol Mg = 24.31g Mg 1 mol MgO = 40.31g MgO MR: 2mol Mg0 = 1mol 02 MR: 2mol MgO = 2mol Mg СHOICES: А. MgO В. Мg С. 02

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