Correct! The correct order of reactivity from least to most reactive is:
S > SO3 > H2SO4 > Ca > CaSO4
Sulfur (S) is the least reactive in this series, while calcium sulfate (CaSO4) is the most reactive.
Correct! The correct order of reactivity from least to most reactive is:
S > SO3 > H2SO4 > Ca > CaSO4
Sulfur (S) is the least reactive in this series, while calcium sulfate (CaSO4) is the most reactive.