Using the reaction: Mg + O2 –> Mgo, What is the balanced equation? If you start with 2g Mg, how many grams of 02 do yo

Question

Using the reaction: Mg + O2 –> Mgo,
What is the balanced equation?
If you start with 2g Mg, how many grams of
02 do you need for this reaction to go to
completion?

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Gerda 4 years 2021-08-31T09:31:25+00:00 1 Answers 15 views 0

Answers ( )

  1. Amity
    0
    2021-08-31T09:32:28+00:00
    Reply

    Answer:

    2Mg +O2 —–》 2MgO

    the balanced equation

    if you start with 2g of Mg let’s calculate moles

    one mole of mg id 24.30 g

    so number of moles =0.08

    hence 2 moles of Mg reacts with 1 mole of O2 molecule

    so Moles of O2 molecule is 0.04

    and mass of O2 in gm is = 16 ×0.04

    which is equal to 0.64 gm

    so the conclusion is if you start with 2g Mg, you need 0.64 grams of

    O2 molecules for this reaction to go to

    completion!!

    i d k it’s right or wrong but i tried my best 🙂

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