Zadatak za 8 razred

Submitted by majaamil on Sun, 02/28/2016 - 18:48
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Koliko grama etena adira 40g broma?

 

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lupica - Sun, 02/28/2016 - 21:54

C2H4+Br2-------->C2H4Br2

x:40g=28:160

x=7g

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majaamil - Mon, 02/29/2016 - 15:27

Hvalaa