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Vreau si eu punctul B, dau coroana!


Vreau Si Eu Punctul B Dau Coroana class=

Răspuns :

C4H6 + 11/2O2 => 4CO2 + 3H2O +Q
C9H10 + 23/2O2 => 9CO2 + 5H2O + Q

54x+118y......................18(3x+5y) = 54x+90y
15,92.................................13,68

738,72x+1614,24y = 859,68x+1432,8y <=> 181,44y = 120,96x => x/y = 3/2