The key part of this equation is the CO3 (carbonate group). Carbonates react with acids (like HNO3) to produce a salt, carbon dioxide and water. Always. The formula for the salt will vary depending on what carbonate and acid you're using. I remember that Acids react with Carbonates to produce a Salt, Carbon dioxide and Water by "All Cats Swim With Cows" (Silly I know, but it's never failed me and I'll never forget it). The salt forms from whatever group is attached to the carbonate and the anion of the acid (the non H part), so a salt of ammonium nitrate will be produced here.
An acid is by definition a substance which donates hydrogen ions (H+), so in any equation containing an acid (like HNO3), the H+ part will separate from the NO3- part (don't split it into HN and O3 for example, because that wouldn't make any sense and those molecules do not exist).
Comments
The key part of this equation is the CO3 (carbonate group). Carbonates react with acids (like HNO3) to produce a salt, carbon dioxide and water. Always. The formula for the salt will vary depending on what carbonate and acid you're using. I remember that Acids react with Carbonates to produce a Salt, Carbon dioxide and Water by "All Cats Swim With Cows" (Silly I know, but it's never failed me and I'll never forget it). The salt forms from whatever group is attached to the carbonate and the anion of the acid (the non H part), so a salt of ammonium nitrate will be produced here.
HNO3 (aq) + (NH4)2CO3 (aq) --> NH4NO3 (aq) + CO2 (g) + H2O (l)
Balanced equation is:
2HNO3 (aq) + (NH4)2CO3 (aq) --> 2NH4NO3 (aq) + CO2 (g) + H2O (l)
An acid is by definition a substance which donates hydrogen ions (H+), so in any equation containing an acid (like HNO3), the H+ part will separate from the NO3- part (don't split it into HN and O3 for example, because that wouldn't make any sense and those molecules do not exist).
Nh4 2co3 Hno3
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H3O+(aq) is correct, I'm afraid.