Question

2. Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this reaction, explain how you came up with this equation, and explain what it tells you about the reaction.

Answer 1

Based on the condition, the correct thermochemical equation for the reaction is :
2NaHCO3 (s) ===> Na2CO3 (s) + H2o (g) + O2 (g)
ΔH = 129kj

hope this helps

Answer 2

Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ.

Answer: As we already know a Thermochemical equation is a balance stoichiometric chemical equation which includes the enthalpy change ΔH.

2NaHCO3(s)+heat→Na2CO3(s)+CO2(g)+H2O(g)
ΔH = 129kJ

I hope it helps, Regards.