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dersonreis's Profile
Star Rating: [2 
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Member Since: Dec 14, 2012
Total # Questions Provided: 1
Total # Answers Provided: 0
]
Member Since: Dec 14, 2012
Total # Questions Provided: 1
Total # Answers Provided: 0
dez
14
2012
Calculos e equaçaeis de quimica ensino médio
( 1 ) Calcule o número de oxidação do átomo de nitrogênio nos comprimentos: N2O5; NO; HNO3 e NaNO2. ( 2 ) Dada a equação: 3 Fe2 2 Al --- 2 Al3 3 Fe (a) Qual elemento sofre...
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