Skip to content

Questions about Carbonate

Short answers, pulled from the story.

What is the formal charge of the carbonate ion?

The carbonate ion carries a total formal charge of negative two. It consists of one carbon atom surrounded by three oxygen atoms in a trigonal planar arrangement.

Which minerals serve as chief constituents of limestone and coral skeletons?

Calcite or calcium carbonate serves as the chief constituent of limestone. Mollusc shells and coral skeletons rely on this same mineral for their structural integrity.

How do metal carbonates behave when heated during calcination?

Metal carbonates generally decompose upon heating to liberate carbon dioxide gas. This process is called calcination after calx the Latin name of quicklime.

What pH range does the carbonate buffer system maintain in human blood?

Three reversible reactions control the pH balance of human blood. These mechanisms stabilize levels within the narrow range of 7.37 to 7.43.

Where have scientists found evidence of small amounts of carbonate deposits?

Small amounts of carbonate deposits exist on Mars according to spectral imaging data. Presence of carbonates in rock suggests strong evidence for past liquid water activity.