Răspuns:
Explicație:
n= m : M
m= n . M
MO2 = 2 .16=32------> 32g/moli
m= 9moli . 32 g/moli=288 g oxigen
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Răspuns:
Explicație:
n= m : M
m= n . M
MO2 = 2 .16=32------> 32g/moli
m= 9moli . 32 g/moli=288 g oxigen