Calcium tetraoxosulphate (VI) dissolves in water only sparingly to form a

Explanation

Calcium sulphate is only slightly soluble in water, meaning that only a small amount of it will dissolve, and the rest will remain as a solid. This is because CaSO\(_4\) is a compound formed with polyatomic ions, and only a few sulphate-containing compounds are slightly soluble in water. When calcium tetraoxosulphate(VI) dissolves sparingly in water, a precipitate is formed.