Form3 Chemistry
回答 (2)
2007-01-04 2:15 am
The chemical composition of chalk is calcium carbonate CaCO3(s). Chalk is white in colour. It can be decomposed to calcium oxide CaO(s) and carbon dioxide CO2(g) when it is strongly heated. Calcium oxide is so-called quicklime.
Chemical formula~
CaCO3(s) → CaO(s) + CO2(g)
Chemical formula~
CaCO3(s) → CaO(s) + CO2(g)
2007-01-04 1:45 am
Chalk = Calcium Carbonate
Calcium carbonate ---> Clacium oxide + carbon dioxide
When heated strongly
Calcium carbonate ---> Clacium oxide + carbon dioxide
When heated strongly
收錄日期: 2021-04-25 15:32:24
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