H= 1, C= 4, O= -2
no se sorry
K= 2, Cr= 6, O= -2
Pb= 4, O= -2, H= 1
Na= -1, C= 4
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Respuesta:
H= 1, C= 4, O= -2
no se sorry
K= 2, Cr= 6, O= -2
Pb= 4, O= -2, H= 1
no se sorry
Na= -1, C= 4