Question

what else is produced when sodium carbonate decomposes? na2co3 → na2o +

Explanation:

Step1: Balance the decomposition reaction.

Sodium carbonate ($Na_2CO_3$) decomposes to sodium oxide ($Na_2O$) and carbon - dioxide ($CO_2$). The balanced equation is $Na_2CO_3
ightarrow Na_2O + CO_2$.

Answer:

$CO_2$