Question

S → SO2 → Na2SO3 → CaSO3 → CaCl2

Answer 1

S + O₂ →t°→ SO₂

SO₂ + Na₂O → Na₂SO₃

Na₂SO₃ + CaCl₂ → CaSO₃ + 2NaCl

CaSO₃ + 2HCl → CaCl₂ + SO₂↑ + H₂O

Answer 2

It looks like you've provided a sequence of chemical compounds, which appears to represent a series of chemical reactions. Let me break down the reactions for you:

1. S → SO2: This represents the oxidation of sulfur (S) to form sulfur dioxide (SO2). This reaction typically occurs when sulfur is burned in the presence of oxygen.

2. SO2 → Na2SO3: This represents the reaction between sulfur dioxide (SO2) and sodium hydroxide (NaOH) to form sodium sulfite (Na2SO3). The balanced chemical equation for this reaction is: SO2 + 2NaOH → Na2SO3 + H2O

3. Na2SO3 → CaSO3: This represents a precipitation reaction where sodium sulfite (Na2SO3) reacts with a calcium salt (possibly calcium chloride, CaCl2) to form calcium sulfite (CaSO3). The balanced chemical equation for this reaction would depend on the specific calcium salt used.

4. CaSO3 → CaCl2: This represents a reaction where calcium sulfite (CaSO3) reacts with calcium chloride (CaCl2) to form calcium chloride (CaCl2). The balanced chemical equation for this reaction would be: CaSO3 + CaCl2 → 2CaCl2 + SO2

Please note that the actual reactions might involve different conditions and may require specific stoichiometric ratios and reactants. Additionally, the formation of calcium sulfite is relatively unstable, and it might undergo further reactions or decomposition under certain conditions. If you have any specific questions or need more information about these reactions, feel free to ask.