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Determinati masa de clor (Zcl=17,Acl=35.5) care se combina cu masa de magneziu care cedeaza 24.088*10^23 electroni.

Răspuns :

Puia68
1atomMg cedeaza  2 electroni
1molMg....................2mol e
1molMg.....................2xN,A=2X6,023X10²³ e
x..............................................24,088x10²³ e
x= 2mol Mg

1mol....1mol
Mg   +  Cl2-----> MgCl2
2mol......n=2mol
 m= n x M
m= 2molx (2x35,5)g/mol= .......................gCl2.......calculeaza !!!!

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