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Calculati cate grame reprezinta 2 moli de calciu,0,5 moli de magneziu, 0,25 moli de oxigen

Răspuns :

1mol........................40g Ca
2moli.......................x
x=2*40/1=80g Ca

1mol...........................24g Mg
0.5moli........................y
y=0.5*24/1=12g Mg

1mol.........................32g O₂
0.25moli....................z
z=0.25*32/1=8g O₂