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aksg
@aksg
October 2020
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Ache o nox e os elementos da reação:
K2Cr2O7 + H2S + H3PO4 -> K3PO4 + CrPO4 + S + H2O
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Cat88
K2Cr2O7 + H2S + H3PO4 -> K3PO4 + CrPO4 + S + H2O
K2Cr2O7
K=+1 / Cr=+6 / O=-2
H2S
H=+1 / S=-2
H3PO4
H=+1 / P=+5 / O=-2
K3PO4
K=+1 / P=+5 / O=-2
CrPO4
Cr=+3 / P=+5 / O=-2
S
S=0
H2O
H=+1 / O+-2
Espero ter ajudado :)
3 votes
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Lista de comentários
K2Cr2O7
K=+1 / Cr=+6 / O=-2
H2S
H=+1 / S=-2
H3PO4
H=+1 / P=+5 / O=-2
K3PO4
K=+1 / P=+5 / O=-2
CrPO4
Cr=+3 / P=+5 / O=-2
S
S=0
H2O
H=+1 / O+-2
Espero ter ajudado :)