Explain the charges in this reaction

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Amy Xiao 1I
Posts: 101
Joined: Sat Jul 20, 2019 12:15 am

Explain the charges in this reaction

Postby Amy Xiao 1I » Mon Feb 24, 2020 11:31 pm

2Hg^(2+) + 2e- --> . Hg2 ^(2+) (see image for clarification)

Can someone explain how this reaction works? I cannot figure out where the 2 e- come in since it seems to me like Hg keeps the same charge.
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Ryan Chang 1C
Posts: 105
Joined: Sat Aug 24, 2019 12:17 am

Re: Explain the charges in this reaction

Postby Ryan Chang 1C » Tue Feb 25, 2020 12:06 am

The total charge of Hg2+ is 4+. Since there are two electrons depicted in the reactants, the total charge of the reactants is 2+. This balances with the products, which has a total charge of 2+ as well since the charge on Hg2 as a whole is 2+.


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