chemistry help: Can someone help me balance these two redox equations? - Help.com

jacobingram
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Can someone help me balance these two redox equations?

please help write the half reactions and final redox equations
1st determine the oxidation number changes for the oxidized and reduced species.

Ca + Cr2O7^-2 —-> Ca^+2 + Cr^+3
Ca goes from 0 to +2, so its oxidized
Cr goes from +6 to +3, so its reduced

and

Fe(OH)3 + Cr^+3 —-> Fe(OH)2 + CrO4^-2
Fe goes from +3 to +2, so its reduced
Cr goes from +3 to +6, so its oxidized

This open post was written 7 months, 3 weeks ago | V/U/S: 271, 2, 3 | Edit Post | Leave a reply | Report Post


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Nycgu offline Unverified User #
An Unknown Location | 7 months, 3 weeks ago (26 minutes after post)

I disluv chemistry lol

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fcchaos offline Verified User (1 year, 8 months) Long Term User Shouts: 0 #
An Unknown Location | 7 months, 3 weeks ago (59 minutes after post)

I have forgetten how to calcuate that…..

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Help me with: I graduated from university last year.Now,I work in a company,but my boss assign very few things to me.So,Most of my working

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