In the Stepwise Preparation of Pure Calcium Carbonate from Limestone,the

question 67

Multiple Choice

In the stepwise preparation of pure calcium carbonate from limestone,the step referred to as calcination involves:

• A)thermal decomposition of calcium carbonate to calcium oxide
• B)addition of water to calcium oxide to form calcium hydroxide
• C)bubbling carbon dioxide through aqueous calcium hydroxide
• D)heating calcium oxide with carbon to form calcium metal
• E)melting of calcium oxide

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