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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Gokeyjaw on April 17, 2022, 11:56:31 AM

Title: Net ionic equation
Post by: Gokeyjaw on April 17, 2022, 11:56:31 AM

Write a net ionic equation for the reaction that occurs when magnesium carbonate (s) and excess hydrochloric acid (aq) are combined.

https://media.discordapp.net/attachments/948055804097990698/965024758477520896/Screenshot_1042.png

This picture shows the answer I had but it was wrong.

Title: Re: Net ionic equation
Post by: Hunter2 on April 17, 2022, 02:12:54 PM

It says you should use H3O+ instead of H+ . It also says HCl aq. Were is the Cl- aq left.

Title: Re: Net ionic equation
Post by: Aldebaran on April 17, 2022, 02:58:48 PM

Some authors/teachers consider ions to be spectator ions (and thus omitted) if they would be unchanged electronically on both sides of the equation irrespective of their physical state (eg solid or aqueous) others will require an ion to appear on both sides of the equation if it changes state even though, in other respects, it remains unchanged. You need to reflect on what your teacher or exam board prefer; to see if this might be the source of your error.