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.
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.