Odpowiedzi

2009-10-21T21:50:53+02:00
H₂O ( 2•1u) : (16u) =2:16=1:8

Cu₂O (2•64u) :(16u) =128:16=8:1

Fe₂S₃ (2•56u) : (3•32u) = 112:96=7:6

CO₂ (12u) : (2•16u) =12:32= 3:8