Consulte Graatis
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Reações quimicas e balanceamentos
Para perceber vazamentos de gás de cozinha são adicionados algumas substância que dão cheiro á mistura de gases combustiveis. Uma substância muito utilizada para esse fim é o etanotiol, C2H6S, qual é, aproximandamente, a massa molar, em g\mol,, dessa substância:
a)30
b)34
c)45
d)62
e)206
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