Question

SO3 > H2SO4 > K2SO4 > KCl ?

Answer 1

SO3 + H2O = H2SO4
H2SO4 + 2KOH = K2SO4 + 2H2O
K2SO4 + BaCl2 = BaSO4⬇️ + 2KCl

Answer 2

The given statement appears to be incorrect in terms of the chemical relationships. Let's break down the comparison:

1. SO3 (Sulfur trioxide): It is a molecular compound consisting of one sulfur atom bonded to three oxygen atoms. It is a highly reactive and corrosive substance.

2. H2SO4 (Sulfuric acid): Also known as oil of vitriol, sulfuric acid is a strong and highly corrosive acid. It is formed by dissolving sulfur trioxide in water. The formula indicates that it contains two hydrogen atoms, one sulfur atom, and four oxygen atoms.

3. K2SO4 (Potassium sulfate): It is a salt formed by combining two potassium ions (K+) and one sulfate ion (SO4^2-). Potassium sulfate is commonly used in fertilizers.

4. KCl (Potassium chloride): It is a salt composed of a potassium ion (K+) and a chloride ion (Cl-). It is often used as a source of potassium in fertilizers and as a supplement in certain medical conditions.

Based on their chemical properties and relationships, the correct order of reactivity or strength, from highest to lowest, would be:

H2SO4 > K2SO4 > KCl > SO3

Sulfuric acid (H2SO4) is a stronger acid than the other compounds listed and is highly reactive. Potassium sulfate (K2SO4) and potassium chloride (KCl) are salts and do not exhibit strong acidity or reactivity. Finally, sulfur trioxide (SO3) is a reactive substance but is less acidic compared to sulfuric acid.