Thanks!
2007-07-12 02:41:25 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Chalk (IPA: /ˈtʃɔːk/) is a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. It forms under relatively deep marine conditions from the gradual accumulation of minute calcite plates (coccoliths) shed from micro-organisms called coccolithophores. It is common to find flint nodules embedded in chalk.
2007-07-12 03:31:01 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Chalk is made of Calcium Carbonate (CaCO3).
One of the "veteran" teachers in our building likes to like his fingers after using chalk. He is convinced it makes a great anti-acid. I don't recommend this since you never know what may have been added to the chalk when it was produced.
2007-07-12 03:21:03 · answer #2 · answered by physandchemteach 7 · 1⤊ 0⤋
I thought chalk was a natural formation, like the White cliffs of Dover.
2007-07-12 02:54:12 · answer #3 · answered by Anonymous · 1⤊ 0⤋
the main material used in making chalk is calcium carbonate(CaCO3).
2007-07-12 03:40:11 · answer #4 · answered by nivedhitha 1 · 1⤊ 0⤋
chalk. it's calcium carbonate
2007-07-12 02:49:46 · answer #5 · answered by FIREDEATHBURN 1 · 0⤊ 0⤋
calcium carbonate
2007-07-12 02:44:31 · answer #6 · answered by billgoats79 5 · 3⤊ 0⤋