Răspunsuri

2014-06-06T09:46:41+03:00
Pai avem asa :   2H_{2} + O_{2}--> 2H _{2}  O
Masa Molara  = 2*1= 2 g/mol (H _{2})
Masa Molara= 2*1+16=18 g/mol (H _{2} O)
⇒ x= (12*18)/2 = 108 g ( H_{2}O
2014-06-06T10:42:14+03:00

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2H2+O2=2H2O

m H2O=(12*18)/2=108