How many iron atoms would be produced by 4.5g of fe2o3 reacting eith an excess of magnesium

Answer :  

Explanation : Given,

Mass of = 4.5 g

Molar mass of = 159.69 g/mole

Molar mass of Fe = 56 g/mole

First we have to calculate the moles of .

Now we have to calculate the moles of Fe.

The balanced chemical reaction will be,

From the balanced reaction we conclude that

As, 1 moles of react to give 2 moles of

So, 0.028 moles of react with moles of

Now we have to calculate the mass of Fe.

Therefore, the number of atoms will be

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

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