Question

NaHCO3 ----->Na2CO3----->BaCO3----->CO2

Answer 1

2NaHCO3=Na2CO3+CO2+H2O

Na2CO3+BaCl2=BaCO3+2NaCl

BaCO3=BaO+CO2

Answer 2

It looks like you've provided a sequence of chemical reactions involving different carbonate compounds. Let me break down each step for you:

1. NaHCO3: This represents sodium bicarbonate, also known as baking soda. When heated, sodium bicarbonate decomposes to form sodium carbonate (Na2CO3), carbon dioxide (CO2), and water (H2O):

   2 NaHCO3 → Na2CO3 + CO2 + H2O

2. Na2CO3: This is sodium carbonate, which can be further processed to form other carbonate compounds. However, in the context of your sequence, the transformation ends here.

If you meant to provide a complete series of reactions, you can continue from sodium carbonate (Na2CO3) to form other carbonate compounds, such as barium carbonate (BaCO3), as you initially indicated. Here's the continuation:

3. BaCO3: This is barium carbonate. If you introduce barium ions (Ba2+) into a solution containing carbonate ions (CO3^2-), barium carbonate can precipitate out of the solution as a solid:

   Ba^2+ + CO3^2- → BaCO3 (solid)

4. CO2: Carbon dioxide is produced as a byproduct of the first reaction (decomposition of sodium bicarbonate) and possibly in subsequent reactions involving carbonates.

It's important to note that these reactions are simplified representations and may not take into account specific reaction conditions, stoichiometry, or other factors. If you have a specific context or purpose in mind for these reactions, please provide more details so I can assist you further.