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How many atoms of Fe are exist in 25 molecules of Fe2O3 ? -------------------

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 Sep 15, 2018
 #1
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Well, since you only have 1 molecule of Fe in Fe2O3, which consists of 2 atoms, it, therefore, follows that you should have: 25 x 2 = 50 atoms of Fe in 25 molecules of Fe2O3.

 Sep 15, 2018
 #2
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i dont get it yet

GALDOSHN  Sep 15, 2018
 #3
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What does Fe2O3 mean? Well, it is a compound called "Iron Oxide". Right?. It consists of 2 elements:

Fe(Iron) and O(Oxygen). The 2 in front of Fe means 2 atoms of iron stick together to form 1 molecule of Iron in this compound, Fe2O3. Similarly, 3 atoms of Oxygen stick together to form 1 molecule of Oxygen in this particular compound, Fe2O3. Then 1 molecule of Iron, Fe2, sticks to 1 molecule of Oxygen, O3, and that combination forms a compound called "Iron Oxide", Fe2O3 !!.

 Sep 15, 2018
 #4
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Wow! you are smart! I'm sure GALDOSHN understands perfectly.  Five stars from me.

 

I'm using your post as an example for a sophisticated,  educational  post that meanders everywhere except toward an explanation for the question. 

 

It's easy to see why the dumb get dumber.

Guest Sep 15, 2018
 #5
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u right im smart but i stop my studys for a long time ' im in scholarship 

 

thank u all for help me 

GALDOSHN  Sep 15, 2018

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