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Consulte Graatis
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Gabsdantas's Profile
Star Rating: [2 
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Member Since: Nov 03, 2014
Total # Questions Provided: 1
Total # Answers Provided: 0
]
Member Since: Nov 03, 2014
Total # Questions Provided: 1
Total # Answers Provided: 0
nov
3
2014
Exercício sobre a Lei de Hess, química
[QUÍMICA] alguém por favor pode me ajudar com esse exercício (Lei de Hess) ? I. B2H6(g) + 3O2(g) --------> B2O3(s) + 3H2O(g) dH= 1900KJ . mol^-1 II. B(s) + 3/4 O2 (g) ---------> 1/2 B2O3(s)...
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