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Topic: net ionic equations  (Read 6618 times)

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Offline willz91

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net ionic equations
« on: August 21, 2007, 10:01:26 AM »
hii, is my equation right?
1. CaCO3(s) + HNO3(aq) --> Ca(NO3)2(ag) + H2O(l) + CO2(g)

  Ca 2+ + CO3 2- + 2H+ +2NO3- -> Ca2+ + 2NO3- + H2O +CO2
  2H+  + CO3 2- -> H2O + CO2
« Last Edit: August 21, 2007, 10:26:24 AM by willz91 »
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Offline Borek

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Re: net ionic equations
« Reply #1 on: August 21, 2007, 10:14:18 AM »
Please read forum rules. Show how you try to approach these equations.
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Offline arunakms

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Re: net ionic equations
« Reply #2 on: August 21, 2007, 10:26:15 AM »
CaCO3(s) + HNO3(aq)  ----- Ca 2+ + 2NO3-+H2O+CO2

 Zn(s) + FeSO4(aq)   -------- Zn2+ + SO42-+ Fe
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Offline constant thinker

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Re: net ionic equations
« Reply #3 on: August 23, 2007, 11:26:18 AM »
Quote from: willz91 on August 21, 2007, 10:01:26 AM
  2H+  + CO3 2- -> H2O + CO2

Looks right to me.
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Offline Yggdrasil

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Re: net ionic equations
« Reply #4 on: August 23, 2007, 07:16:34 PM »
Quote from: willz91 on August 21, 2007, 10:01:26 AM
hii, is my equation right?
1. CaCO3(s) + HNO3(aq) --> Ca(NO3)2(ag) + H2O(l) + CO2(g)

  Ca 2+ + CO3 2- + 2H+ +2NO3- -> Ca2+ + 2NO3- + H2O +CO2
  2H+  + CO3 2- -> H2O + CO2

Since your dealing with solid calcium carbonate, you should not represent it as ions in your ionic equation.  You should only dissociate salts marked as aqueous since solids are not dissociated in water.
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Offline constant thinker

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Re: net ionic equations
« Reply #5 on: August 23, 2007, 10:38:08 PM »
Quote from: Yggdrasil on August 23, 2007, 07:16:34 PM

Since your dealing with solid calcium carbonate, you should not represent it as ions in your ionic equation.  You should only dissociate salts marked as aqueous since solids are not dissociated in water.

I missed that. That's a good catch, and an excellent point.
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