calcium

Calcium is element 20. This topic is part of Chemistry within Science & Nature. This page currently draws on 30 supporting questions, with answers and bonus facts available below.

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calcium trivia questions

What is the chemical symbol for calcium?

Answer: Ca

Bonus fact: Calcium is element 20.

Calcium is especially important for healthy bones and what?

Answer: Teeth

Bonus fact: Most body calcium is stored in bones and teeth.

Which rock commonly quarried for construction is composed mostly of calcium carbonate?

Answer: Limestone

Bonus fact: Limestone is widely used for cement and building stone.

At Plitvice Lakes, what material builds the natural barriers that dam the water and form lakes and waterfalls?

Answer: Travertine

Bonus fact: UNESCO says the barriers form as calcium carbonate is deposited from the water.

The eggshell of a chicken egg is composed mainly of what mineral compound?

Answer: Calcium carbonate

Bonus fact: Chicken eggshells are largely calcium carbonate crystals.

Ordinary soda-lime glass contains silica along with compounds of sodium and what other major element?

Answer: Calcium

Bonus fact: Soda-lime glass is made mainly from silica, sodium oxide, and calcium oxide.

Limestone is composed mainly of what mineral?

Answer: Calcite

Bonus fact: Calcite is calcium carbonate.

Many caves form when slightly acidic groundwater dissolves what rock?

Answer: Limestone

Bonus fact: Carbonic acid in water dissolves calcium carbonate.

A coral reef is built mainly by what animals?

Answer: Coral polyps

Bonus fact: Polyps secrete calcium carbonate skeletons.

What mineral commonly forms limestone cave stalactites?

Answer: Calcite

Bonus fact: Calcium carbonate precipitates from dripping water.

What mineral salt is a traditional tofu coagulant?

Answer: Calcium sulfate

Bonus fact: Calcium sulfate is commonly used.

Which compound is commonly used as an antacid ingredient?

Answer: Calcium carbonate

Bonus fact: Calcium carbonate neutralizes hydrochloric acid.

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