Question

S➡️SO2➡️SO3➡️H2SO4➡️NaSO4➡️BaSO4➡️SO3

Answer 1

S + O2 = SO2

2SO2 + O2 = 2SO3

SO3 + H2O = H2SO4

H2SO4 + 2NaOH = Na2SO4 + 2H2O

Na2SO4 + BaCl2 = BaSO4 + 2NaCL

BaSO4 =(t) BaO + SO3

Answer 2

The chemical reaction sequence you've provided involves the transformation of sulfur (S) into various compounds. Here's a breakdown of each step:

1. S (sulfur) is converted into sulfur dioxide (SO2) through the combustion reaction:

   S + O2 → SO2

2. Sulfur dioxide (SO2) is further oxidized to form sulfur trioxide (SO3). This reaction typically occurs in the presence of a catalyst such as vanadium pentoxide (V2O5):

   2SO2 + O2 → 2SO3

3. Sulfur trioxide (SO3) reacts with water (H2O) to produce sulfuric acid (H2SO4). This reaction is highly exothermic and is usually performed under carefully controlled conditions:

   SO3 + H2O → H2SO4

4. Sulfuric acid (H2SO4) can undergo a neutralization reaction with sodium hydroxide (NaOH) to form sodium sulfate (Na2SO4):

   H2SO4 + 2NaOH → Na2SO4 + 2H2O

5. Sodium sulfate (Na2SO4) can then react with barium chloride (BaCl2) in a double displacement reaction to produce barium sulfate (BaSO4) and sodium chloride (NaCl):

   Na2SO4 + BaCl2 → BaSO4 + 2NaCl

6. Finally, barium sulfate (BaSO4) can be heated to decompose it, producing sulfur dioxide (SO2) as one of the products:

   BaSO4 → BaO + SO2

Please note that some of the reactions mentioned above may require specific conditions or catalysts to occur effectively.