GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calcium, carbon, hydrogen
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Calcium, oxygen, hydrogen
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Calcium, carbon, oxygen
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None of the above
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Detailed explanation-1: -Calcium carbonate is a chemical compound with the formula CaCO3 formed by three main elements: carbon, oxygen, and calcium.
Detailed explanation-2: -Calcite or calcspar is the mineral name of the low-pressure, hexagonal form of calcium carbonate, CaCO3. It is observed that calcite is the principal constituent of limestone, marble, and chalk. The mineral Iceland spar is a pure, colorless, optical quality form of calcite.
Detailed explanation-3: -Like all metal carbonates, calcium carbonate reacts with acidic solutions to produce carbon dioxide gas. It is this reaction that is responsible for limestone fizzing when dilute hydrochloric acid is placed on its surface.
Detailed explanation-4: -The formula for the compound formed from calcium and oxygen is CaO, which is calcium oxide.
Detailed explanation-5: -Calcium carbonate is a molecule that contains one atom of calcium, one atom of carbon, and three atoms of oxygen.