Calcium
Published on Nov 21, 2015
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PRESENTATION OUTLINE
The symbol for calcium is Ca
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origin of the name calcium:
the word calcium came from the latin word "calx" which means lime.
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Calcium was discovered by Sir Humphrey Davy in 1808.He discovered it by mixing lime and mercury oxide which made calcium.
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The Romans made calcium in the first century, and they used it for setting broken bones.
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Uses of Calcium
- calcium carbonate, (limestone)
- calcium sulfate, (used for setting bones)
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Calcium is made by mixing lime and mercuric oxide.
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The density is 1.54 grams per cubic centimeter.
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Physical Properties of Calcium
- it's a silvery-white color
- it's a solid
- relatively soft
- cubic
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Chemical Properties of Calcium
- highly reactive
- catches on fire when heated in the air or in oxygen
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Some Calcium Compounds
- calcium carbonate
- calcium telluride
- calcium selenide
- calcium sulphide
- calcium oxide
Photo by Jan van der Wolf
Facts about calcium
- Calcium is the 5th most abundant element in the world.
- We need calcium in order to live.
- If you take in too much calcium, you can get milk-alkali syndrome.
- Calcium is used in cement and cheese.
- We need vitamin D to absorb calcium.
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Cubic
An incredible element
Likely to catch on fire
Can be bent easily
Incredibly reactive
U need it to live
Melting point-1548 degrees
Photo by Sergiu Bacioiu
