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# What is the balanced equation for ammonium carbonate is heated, it decomposes into ammonia gas, carbon dioxide gas, and water vapor?

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Mar 8, 2016

The reactions that describe the decomposition of ammonium carbonate (${\left(N {H}_{4}\right)}_{2} C {O}_{3}$) are:

${\left(N {H}_{4}\right)}_{2} C {O}_{3} \left(s\right) \to N {H}_{4} H C {O}_{3 \left(s\right)} + N {H}_{3 \left(g\right)}$ (1)
$N {H}_{4} H C {O}_{3 \left(s\right)} \to N {H}_{3 \left(g\right)} + {H}_{2} {O}_{\left(g\right)} + C {O}_{2 \left(g\right)}$ (2)

${\left(N {H}_{4}\right)}_{2} C {O}_{3} \left(s\right) \to 2 N {H}_{3 \left(g\right)} + C {O}_{2 \left(g\right)} + {H}_{2} {O}_{\left(g\right)}$ (3)

(1) - ammonium carbonate decomposes into ammonium bicarbonate and ammonia ($N {H}_{3}$);
(2) - ammonium bicarbonate decomposes into carbon dioxide ($C {O}_{2}$), water, and ammonia;
(3) - the decomposition of ammonium carbonate - total reaction;

Both reaction are endothermic - heat must be supplied in order for the reaction to take place.

Here's a video of the reaction:

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