Question

What is the source of calcium oxide? A)CaO B)Ca20 C)CaCo3​

Answer 1

CaO

Calcium oxide, CaO, also known as lime or more specifically quicklime, is a white or grayish white solid produced in large quantities by roasting calcium carbonate so as to drive off carbon dioxide. At room temperature, CaO will spontaneously absorb carbon dioxide from the atmosphere,

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