Is lime a mixture element or compound?

Answer 1

Lime is a compound.

Answer 2

Lime is a compound.

Answer 3

That entirely depends on what you mean by lime! Lime can mean one of two different trees, the familiar citrus and the English linden. They are obviously complex mixtures. Even lime juice is a mixture. Assuming you are referring to chemical lime, as used in building, this term is used in the names of several different calcium compounds. As most of them are derived from natural limestone they are unlikely to be pure substances, but they can be purified, or prepared pure, for lab use.Calcium carbonate is limestone;

calcium oxide is quicklime, used to manufacture cement, mortar and concrete;

calcium hydroxide is slaked lime, used by builders and in gardening and agriculture.

Slaked lime gradually absorbs carbon dioxide from the air and becomes calcium carbonate, which is mostly responsible for its 'setting' action.

If you buy 'lime' it's probably mostly calcium hydroxide, but may also contain some unhydrated calcium oxide, residues from the original limestone and calcium carbonate from exposure to air, the quantity depending on the storage conditions. Hence, the short answer is 'mixture'.

Answer 4

Lime is a compound.