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64 g 22.4 dm³
CaC2 + 2H2O → Ca(OH)2 + C2H2
12.8 g x
x = 4.48 dm³
proszę :)
CaC₂+2H₂O--->C₂H₂+Ca(OH)₂
12,8g x
x=12,8*22,4/64=4,48dm³