A white, insoluble solid occurring naturally as chalk, limestone, marble, and calcite, and forming mollusk shells and stony corals.
- Chemical formula: CaCO3.
- When water becomes supersaturated in dissolved calcium carbonate, solid calcium carbonate can grow by precipitation from the water.
- Insoluble calcium carbonate is basically chalk.
- When you make cement you make calcium oxide which can react with carbon dioxide and make calcium carbonate.
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Syllabification: cal·ci·um car·bon·ate
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