Răspunsuri

2014-09-10T18:32:22+03:00
CnH2n+2 + (3n+1) O2 ---> n CO2 + (n+1) H2O
14n+2 g alcan............18*(n+1) g apa
10,8 g alcan..................16,2 g apa
194,4n+194,4=226,8n+32,4
=>32,4n=162=>n=5=>C5H12 deci E