zadanie 1 i 2 w załacznikach chemia
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zadanie 1 i 2 w załacznikach chemia
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CaC2 + 2 H2O= Ca(OH)2 + C2H2
CaO + H2O= Ca(OH)2
C2H2 + H2= C2H4
C2H4 + H2= C2H6
2.
2*12+4*1=28
28- 100%
28*12- X
X= 85,7%