Question

S-->SO2-->SO3-->H2SO4-->BaSO4

Answer 1

1. S+O2=SO2  или  S+2H2SO4=2H2O+3SO2
2. SO2 + O3 → SO3+O2↑
3. SO3+H2O=H2SO4
4. H2SO4+BaCI2=BaSO4↓+2HCI

Answer 2

The Reaction Pathway: S -> SO2 -> SO3 -> H2SO4 -> BaSO4

The given reaction pathway shows the transformation of sulfur (S) into barium sulfate (BaSO4) through a series of chemical reactions. Let's break down each step of the pathway:

1. Sulfur (S) reacts with oxygen (O2) to form sulfur dioxide (SO2). - Equation: S + O2 -> SO2

2. Sulfur dioxide (SO2) further reacts with oxygen (O2) to produce sulfur trioxide (SO3). - Equation: 2SO2 + O2 -> 2SO3

3. Sulfur trioxide (SO3) reacts with water (H2O) to form sulfuric acid (H2SO4). - Equation: SO3 + H2O -> H2SO4

4. Sulfuric acid (H2SO4) reacts with barium chloride (BaCl2) to produce barium sulfate (BaSO4). - Equation: H2SO4 + BaCl2 -> BaSO4 + 2HCl

It's important to note that the given reaction pathway is a simplified representation of the chemical transformations involved. In reality, there may be additional intermediate steps or side reactions depending on the specific conditions and reactants used.

Key Points:

- The reaction pathway from sulfur (S) to barium sulfate (BaSO4) involves the following steps: S -> SO2 -> SO3 -> H2SO4 -> BaSO4. - Sulfur dioxide (SO2) is formed by the reaction of sulfur (S) with oxygen (O2). - Sulfur trioxide (SO3) is produced by the further reaction of sulfur dioxide (SO2) with oxygen (O2). - Sulfuric acid (H2SO4) is obtained by the reaction of sulfur trioxide (SO3) with water (H2O). - Barium sulfate (BaSO4) is formed by the reaction of sulfuric acid (H2SO4) with barium chloride (BaCl2).

I hope this explanation helps! Let me know if you have any further questions.