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OpenStudy (vera_ewing):
Which of the following reactions is a redox reaction? A. Na2SO4 + BaCl2 --> BaSO4 + 2 NaCl B. Pb2+ + 2 Cl- --> PbCl2 C. 2 Fe + 3 S --> Fe2S3 D. 2 Na2CrO4 + H2O --> Na2Cr2O7 + 2 NaOH E. Both 2 Fe + 3 S --> Fe2S3 and 2 Na2CrO4 + H2O -->Na2Cr2O7 + 2 NaOH are redox reactions.
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OpenStudy (vera_ewing):
@sweetburger
OpenStudy (sweetburger):
B.
OpenStudy (sweetburger):
wait
OpenStudy (vera_ewing):
?
OpenStudy (sweetburger):
i just realised that says pb2+
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OpenStudy (vera_ewing):
yeah it does....so if B isn't the answer, then what is??
OpenStudy (sweetburger):
E. cus there is actually a change in oxidization states for the elements involved
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