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26 June, 03:03

When 1.5 grams of magnesium burns, how many grams of magnesium oxide will be formed?

a. write a balanced chemical equation for the above reaction.

b. show by unit conversion (show conversion factors, ie. 2 g h20 x 1 mole h2o/18 g h2o x ... x ... = answer?

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  1. 26 June, 06:31
    0
    The balanced chemical reaction for this would be written as:

    2Mg + O2 = 2MgO

    We use this reaction and the amount of the reactant given to calculate for the amount of magnesium oxide that is produced. We do as follows:

    1.5 g Mg (1 mol / 24.31 g) (2 mol MgO / 2 mol Mg) (40.30 g / 1 mol) = 2.49 g MgO produced
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