Respostas

2013-06-08T12:11:35-03:00

2C₂H₂+5O₂-->4CO₂+2H₂O

 

5*6,02*10²³ O₂ ---------------- 2*6,02*10²³ H₂O

3*10²⁴ O₂ --------------------------- x H₂O

 

x=3*10²⁴ * 12,04*10²³ / 30,1*10²³

x=1,2*10²⁴ moléculas de água

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