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1. 3HAsO2 + Cr2O72-+ 8H+3H3AsO4 + 2Cr3++ H2O 2. 3Ni2++2Cr --->2Cr3++3Ni 3. Zn + Co2--->Co+Zn2+ For all 3 equations:

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1. 3HAsO2 + Cr2O72-+ 8H+3H3AsO4 + 2Cr3++ H2O 2. 3Ni2++2Cr --->2Cr3++3Ni 3. Zn + Co2--->Co+Zn2+ For all 3 equations:

Posted: Wed May 04, 2022 3:28 pm
by answerhappygod
1.
3HAsO2 + Cr2O72-+
8H+3H3AsO4 + 2Cr3++
H2O
2. 3Ni2++2Cr
--->2Cr3++3Ni
3. Zn +
Co2--->Co+Zn2+
For all 3 equations:
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