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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Definitions:

Diuretic

A substance that promotes the production of urine, often used to treat high blood pressure, edema, and certain kidney conditions.

Potatoes

Edible tubers from the plant Solanum tuberosum, widely used as a staple food in many cultures due to their versatility and nutritional content.

Fresh Fruit

Unprocessed fruit, consumed for its natural sweetness and nutritional value.

Hyperkalemia

A condition characterized by an abnormally high level of potassium in the bloodstream.