Answer:
Quicklime.
Step-by-step explanation:
Calcium oxide (
) derives from calcium carbonate (
, basically calcite) after being calcinated (having
removed) and therefore leaving us with 1 Calcium and 1 oxygen atom.
We use the term "lime" to refer to any calcium-based mineral, whereas the term "quicklime" is used to refer specifically to
.
Hope it helped,
BiologiaMagister