Calcium Wikipedia The Free Encyclopedia

Calcium - Simple English Wikipedia, the free encyclopedia

Calcium is a chemical element.Its symbol on the periodic table (a list of all the elements) is Ca.Its atomic number is 20. (The atomic number says where Calcium sits in the periodic table.) It has 20 protons and 20 electrons (if is an atom, see ion).The most common isotopes are Ca-40 and Ca-44. Its mass number is about 40.08. Calcium is very important in the human body, for making bones and ...

Calcium supplement - Wikipedia

Calcium supplements are salts of calcium used in a number of conditions. Supplementation is generally only required when there is not enough calcium in the diet. By mouth they are used to treat and prevent low blood calcium, osteoporosis, and rickets. By injection into a vein they are used for low blood calcium that is resulting in muscle spasms and for high blood potassium or magnesium toxicity. Common side effects include constipation and nausea. When taken by mouth high blood calciumis unco

Calcium - Simple English Wikipedia, the free encyclopedia

Calcium is a chemical element.Its symbol on the periodic table (a list of all the elements) is Ca.Its atomic number is 20. (The atomic number says where Calcium sits in the periodic table.) It has 20 protons and 20 electrons (if is an atom, see ion).The most common isotopes are Ca-40 and Ca-44. Its mass number is about 40.08. Calcium

Calcium phosphate - Wikipedia

Calcium phosphate is a family of materials and minerals containing calcium ions (Ca 2+) together with inorganic phosphate anions. Some so-called calcium phosphates contain oxide and hydroxide as well. Calcium phosphates are white solids of nutritious value and are found in many living organisms, e.g., bone mineral and tooth enamel. In milk, it exists in a colloidal form in micelles bound to ...

Calcium carbonate - Wikipedia

Calcium carbonate is a chemical compound with the formula Ca CO 3.It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of eggshells, snail shells, seashells and pearls.Calcium carbonate is the active ingredient in agricultural lime and is created when ...

Wikipedia, the free encyclopedia

From today's featured article Cromwell and the English cavalry at Dunbar The Battle of Dunbar was fought between the English New Model Army, under Oliver Cromwell, and a Scottish army, commanded by David Leslie, on 3 September 1650 near Dunbar, Scotland. The first major battle of the Third English Civil War, it was decisively won by the English. The English crossed into Scotland in July, and ...

Calcium imaging - Wikipedia

Calcium imaging is a microscopy technique to optically measure the calcium (Ca 2+) status of an isolated cell, tissue or medium.Calcium imaging takes advantage of calcium indicators, fluorescent molecules that respond to the binding of Ca 2+ ions by fluorescence properties. Two main classes of calcium indicators exist: chemical indicators and genetically encoded calcium indicators (GECI).

Calcium | Article about calcium by The Free Dictionary

Calcium. (Ca), a chemical element in group IIA of Mendeleev’s periodic table. Atomic number, 20; atomic weight, 40.08; a silver-white, lightweight metal. The natural element consists of a mixture of six stable isotopes: 40Ca, 42Ca, 43Ca, 44Ca, 46C a, and 48Ca, the

Calcium oxide - Simple English Wikipedia, the free ...

Calcium oxide is a chemical compound of calcium and oxygen. Its chemical formula is CaO. It is known as quicklime. It is made in a lime kiln. It releases heat when dissolved in water and changes into calcium hydroxide. It is a white powder. It is also a base. It reacts with acids to make calcium salts.

Template:Infobox calcium - Simple English Wikipedia, the ...

Usually parameters reproduce the value, and the template adds the SI unit or additional standard text. While the topic is technical, we can strive to make the result readable text, and even verbose. For example, this is why the template writes " (at 0 °C)". For this, you may want to experiment with parameter input too - or propose improvements.

Calcium nitrate - Simple English Wikipedia, the free ...

Calcium nitrate is a colorless solid. It is an oxidizing agent. It absorbs water from the air. It decomposes to make nitrogen dioxide and calcium oxide when heated. Preparation. Calcium nitrate is made by reacting calcium hydroxide or calcium carbonate with nitric acid. It is made when nitric acid reacts with calcium phosphate.

Calcium nitride - Simple English Wikipedia, the free ...

Calcium nitride is a chemical compound. Its chemical formula is Ca 3 N 2. It contains calcium and nitride ions. Properties. It is a red-brown solid. It reacts with water to make calcium hydroxide and ammonia. It reacts with hydrogen to make calcium hydride and calcium amide ...

Dicalcium phosphate - Simple English Wikipedia, the free ...

Properties. Dicalcium phosphate is a white solid. It does not dissolve in water. It can be thought of as phosphoric acid where two of the hydrogen ions are replaced with calcium ions.. Preparation. It can be made by reacting phosphoric acid with calcium hydroxide.It can also be made by reacting sulfuric acid with a certain amount of tricalcium phosphate. ...

Calcium bromate - Simple English Wikipedia, the free ...

From Simple English Wikipedia, the free encyclopedia. Jump to navigation Jump to search. Calcium bromate is a chemical compound. Its chemical formula is Ca (BrO 3) 2. It contains calcium

Calcium phosphate | Ca3(PO4)2 - PubChem

Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. This agent can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium in the gastrointestinal (GI) tract.

Calcium - Wikipedia

Calcium in biologie en geneeskunde. Calcium heeft in het lichaam een rol in botmineralisatie (botopbouw), bloedstolling, plasmamembraanpotentiaal, spiercontractie, hormoonafgifte, glycogeenmetabolisme en celdeling. Calcium bevindt zich in het skelet (99%), in de weefsels en in de extracellulaire vloeistoffen (onder andere het bloed).

Rickets - Wikipedia

Rickets is a condition that results in weak or soft bones in children. Symptoms include bowed legs, stunted growth, bone pain, large forehead, and trouble sleeping. Complications may include bone fractures, muscle spasms, or an abnormally curved spine.. The most common cause of rickets is a vitamin D deficiency. This can result from eating a diet without enough vitamin D, dark skin, too little ...

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Calcium oxide - Simple English Wikipedia, the free ...

Calcium oxide is a chemical compound of calcium and oxygen. Its chemical formula is CaO. It is known as quicklime. It is made in a lime kiln. It releases heat when dissolved in water and changes into calcium hydroxide. It is a white powder. Calcium oxide Names IUPAC name.

Calcium chloride - Simple English Wikipedia, the free ...

Calcium chloride. Calcium chloride is a chemical compound made of calcium and chlorine atoms. It has the formula of CaCl 2. It absorbs water from the air and releases heat when it is dissolved in water. It is used as a de-icer on roads to melt the ice. It can be formed by mixture of calcium oxide with hydrochloric acid, but this produces a ...

Calcium nitride - Simple English Wikipedia, the free ...

Calcium nitride. Calcium nitride is a chemical compound. Its chemical formula is Ca 3 N 2. It contains calcium and nitride ions . Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ?)

Calcium hydroxide - Simple English Wikipedia, the free ...

Calcium hydroxide, also known as slaked lime, is a chemical compound with the formula Ca(OH) 2.It dissolves slightly in water. It is a base.It can be made by the chloralkali process.It can be dehydrated (remove the water) to calcium oxide by heat. It can be used to neutralize acidic soils.

Wikipedia | Article about Wikipedia by The Free Dictionary

Wikipedia The world's largest encyclopedia available on the Web at wikipedia. Wikipedia is user generated, and anyone can create or edit an article (see wiki).Founded in 2001 by Jimmy Wales, as of 2020, there are more than six million articles in English, as well as articles in every language on earth.

iPhone 5S Case Silicafe Calcium Silicafe Wikipedia The ...

Amazon: iPhone 5S Case Silicafe Calcium Silicafe Wikipedia The Free Encyclopedia iPhone 5 Case: Electronics

Wikipedia | Definition, History, & Facts | Britannica

Jan 15, 2001 · Wikipedia, free Internet-based encyclopedia, started in 2001, that operates under an open-source management style. It is overseen by the nonprofit Wikimedia Foundation and is one of the most-visited sites on the Internet. It uses a collaborative software known as wiki for editing articles.

Magnesium hydroxide - Wikipedia, the free encyclopedia

May 06, 2010 · Magnesium hydroxide Magnesium hydroxide Milk of Magnesia Identifiers CAS number 1309-42-8 PubChem 14791 RTECS number OM3570000 Properties Molecular formula

Calcium silicate brick | Article about calcium silicate ...

Calcium silicate bricks of the format 290 x 140 x 65 mm were used for experiments; they featured the following basic parameters: (iii) number of calcium silicate bricks in a set--140. Residual standard deviations of processed relationships (2)- (4) for the prediction of compressive strength of calcium silicate bricks obtained from the ...

Calcium resinate | Article about ... - The Free Dictionary

calcium resinate. Yellowish white, amorphous powder that is soluble in acid, insoluble in water; made by boiling rosin with calcium hydroxide and filtering, or by fusion of melted rosin with hydrated lime; used for waterproofing, leather tanning, and the manufacture of paint

Calcium metatitanate - The Free Dictionary

perovskite[pə′rävz‚kīt] (mineralogy) Ca[TiO3] A natural, yellow, brownish-yellow, reddish, brown, or black mineral and a structure type which includes no less than 150 synthetic compounds; the crystal structure is ideally cubic, it occurs as rounded cubes modified by the octahedral and dodecahedral forms, luster is subadamantine to submetallic ...

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