Spectator Ions

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David Zhang 1B
Posts: 48
Joined: Mon Jun 17, 2019 7:23 am

Spectator Ions

Postby David Zhang 1B » Mon Jul 29, 2019 11:50 pm

How can we tell which part of an acid/base molecule is a spectator ion and doesn't react?

Ethan McCarthy 1F
Posts: 31
Joined: Wed Feb 27, 2019 12:17 am

Re: Spectator Ions

Postby Ethan McCarthy 1F » Tue Jul 30, 2019 9:02 pm

You can tell when you write out the net ionic equation and the ion is "by itself" (not part of a molecule) as both a product and a reactant. Like in a reaction between NaOH and HCl, I believe both Na and Cl would both be considered spectator ions since they would remain Na+ and Cl- ions when left in the aqueous solution (since NaCl dissociates in water).

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