Question

S-ZnS-SO2-H2SO3-K2SO3

Answer 1

S + Zn = ZnS2ZnS + 3O2 = 2ZnO + 2SO2SO2 + H2O = H2SO3H2SO3 + 2KOH = K2SO3 + 2H2O

Answer 2

The given sequence "S-ZnS-SO2-H2SO3-K2SO3" appears to be a combination of chemical formulas or compound names. Here's a breakdown of each component:

1. S: This represents the chemical symbol for sulfur, an element in the periodic table.

2. ZnS: This stands for zinc sulfide, a compound consisting of zinc (Zn) and sulfur (S). It is commonly used as a phosphor in luminescent materials.

3. SO2: This stands for sulfur dioxide, a gaseous compound composed of sulfur (S) and oxygen (O). It is produced by the combustion of sulfur-containing materials and is often used as a preservative, refrigerant, or reducing agent.

4. H2SO3: This is the chemical formula for sulfurous acid. It is an aqueous solution of sulfur dioxide (SO2) dissolved in water and is considered a weak acid.

5. K2SO3: This represents potassium sulfite, a compound composed of potassium (K) and sulfite ions (SO3^2-). It is used as a reducing agent and in certain industrial processes.

In summary, the sequence represents a combination of elements (S), compounds (ZnS, SO2, H2SO3, K2SO3), and their chemical formulas or names.