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Calcium

Calcium is a chemical element with the atomic number 20 and symbol Ca. It is an alkaline earth metal and one of the most abundant metals in the Earth’s crust. Calcium is also essential for living organisms, both as a catalyst for cellular processes and as a component of shells, bones, and teeth.

873 Questions

Is calcium a metal?

Yes, calcium is a metal. It is a chemical element found in group 2 of the periodic table, known for its high reactivity with water and its role in various biological processes such as bone formation and muscle contractions.

How do you remove calcium deposits from hot tubs?

In terms of removing calcium buildup and deposits from hot tubs, there are two products which are very effective. Spa System Flush will remove loose calcium, and calcium from the inside of the pipes and in the spa equipment. TLC works great for cleaning calcium and decaling vinyl liners, tile, fiberglass, and concrete.

What is the symbol for calcium?

Ca(NO3)2

Taken from: http://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson53.htm

What does calcium do?

Calcium in the diet is necessary for strong bones and teeth. It is also used in blood clotting, nerve regulation, and muscle contraction.

Calcium carbonate is a major biological structural material, especially in mollusc exoskeletons.

How do you get the element calcium?

In 1808, Humphry Davy invented a system for melting compounds of elements that were difficult to separate by usual methods. He passed an electric current through the compound, causing the compounds to break into parts. The element that he used this method on was calcium. By melting calcium carbonate (CaCO3)-which is a common compound of calcium-and passing an electric current, he was able to create a pure form of calcium.

How does calcium help the body?

Bone serves as the reservoir for 99% of the body's total calcium. Calcium is an essential nutrient for bone health. It is also needed for the heart, muscles and nerves to work properly and for blood to clot normally. The body loses calcium every day though

How do you clear calcium deposits from a toilet?

Pour white vinegar into the basin in order to stop calcium build up in your sump pump. The vinegar breaks up the calcium so it does not cause problems. Use one gallon of vinegar. You should do this as part of yearly maintenance.

Does calcium has any role in vasoconstriction?

Yes, calcium plays a crucial role in vasoconstriction. It acts as a signaling molecule that promotes smooth muscle contraction in the blood vessels, leading to vasoconstriction. When calcium levels increase in the smooth muscle cells surrounding blood vessels, it triggers a series of events that result in the narrowing of the vessel, increasing vascular resistance and raising blood pressure.

How many percent of calcium in the teeth?

There are 33 percent of calcium in your teeth. The rest is bacteria,plaque and germs.There are 33 percent of calcium in your teeth. The rest is bacteria,plaque and germs.

How is calcium digested?

Calcium is absorbed in the small intestine through a process that involves active transport and passive diffusion. It is influenced by factors like vitamin D, stomach pH, and the presence of other nutrients like magnesium. Once absorbed, calcium enters the bloodstream and is then utilized by various tissues in the body.

What is calcium build up in the body?

In order to lower your calcium levels in your body you can do a few things. Calcium is used by muscles in the human body so you can exercise and utilize some of the calcium which you have building up. You can also lower the amount of calcium you get per day and increase your fluids. Also talk to your DR. about meds that lower calcium levels such as loop diuretics, and corticosteroids.

What is calcium pidolate?

Calcium pidolate is a form of calcium salt that is used as a dietary supplement to ensure an adequate intake of calcium in the body. It is known for its high bioavailability, which means that the body can easily absorb and utilize the calcium from calcium pidolate.

How do you treat facial calcium deposits?

Facial calcium deposits, also known as calcinosis cutis, may be treated by addressing any underlying medical conditions, managing symptoms like pain or itching, and potentially removing the deposits through procedures like surgical excision or laser therapy. Treatment options should be discussed with a healthcare provider to determine the best approach based on individual circumstances.

Is calcium sulphate and agricultural gypsum the same?

Yes, calcium sulphate and agricultural gypsum are the same compound. Gypsum is the common name for calcium sulphate in its hydrated form, commonly used in agriculture to improve soil structure and provide essential calcium and sulfur nutrients to plants.

How much calcium is in Nutrition Facts?

The calcium percentages that you see in nutrition facts are based on the amount of calcium a person would need in a day if he or she ate a 2,000 calorie diet. This amount is 1,000 mg of calcium, which may be recommended for adults. It is higher for teenagers and postmenopausal women. So, if a product states that it supplies 20% of the DV (daily value) for calcium (200 mg), it is considered to be a high source of calcium but if it is 5% of the DV (50 mg), then it is considered to be a low source of calcium. Rather than giving the actual amount in miligrams, label regulators decided to use percentages so that adults can easily compare product but sometimes it gets confusing for many.

What is tetraphosphorous decaoxide?

It is a chemical compound composed of phosphorus and oxygen, with molecular formula P4O10. It is produced by the complete combustion of phosphorus. It is also known as phosphorus pentaoxide (but the molecule is really composed of 4 phosphorus atoms and 10 oxygens). To see it's very interesting and unique structure, click the Web Links to the left of this answer.

What are practical uses of calcium?

One must be careful to distinguish between the pure metallic element called Calcium and the compound Calcium carbonate that has often been colloquially referred to as simply calcium.

  • Pure calcium is a soft grey alkaline earth metal,
  • In compounds it is the fifth most abundant element by mass in the Earth's crust.
Calcium is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bones and shells, calcium is the most abundant ion by mass in many animals.

Metallic calcium (the less common form in nature) is used in various commercial roles other than as nutritional supplements to support biological life. Some uses include:
  • Working as a reducing agent in the extraction of other metals, such as uranium, zirconium, and thorium
  • Working as a deoxidizer, desulfurizer, or decarbonizer for various ferrous and nonferrous alloys
  • Working as an alloying agent used in the production of aluminium, beryllium, copper, lead, and magnesium alloys

The more 'natural form' of calcium is ionically bound in 'calcium containing compounds', it serves important roles in life as well:
  • Calcium, combined with phosphate to form hydroxylapatite, is the mineral portion of human and animal bones and teeth.
  • Used in the making of cements and mortars to be used in construction.
    Calcium hydroxide (slaked lime) is used in many chemical refinery processes and is made by heating limestone at high temperature (above 825°C) and then carefully adding water to it. When lime is mixed with sand, it hardens into a mortar and is turned into plaster by carbon dioxide uptake. Mixed with other compounds, lime forms an important part of Portland cement.
  • Calcium carbonate (CaCO3) is one of the common compounds of calcium. It is heated to form quicklime (CaO), which is then added to water. This forms another material known as slaked lime (Ca(OH)2), which is an inexpensive base material used throughout the chemical industry. Chalk, marble, and limestone are all forms of calcium carbonate.
  • Various calcium salts are used as an alternative to sodium chloride as road salt.
  • Used in the making of cheese, where calcium ions influence the activity of rennin in bringing about the coagulation of milk

How do you remove and prevent calcium deposits on the rock of a rock waterfall?

To remove calcium deposits on a rock waterfall, you can scrub the rocks with a mixture of equal parts water and vinegar. To prevent future build-up, you can also add a sequestering agent to the water that helps prevent minerals from sticking to the rocks. Regularly cleaning and maintaining the waterfall will also help prevent calcium deposits from forming.

What does anti-calcium do and how does it remove a build up of calcium stains?

I don't believe it does - I think it just prevents stains. I have calcium stains on my pool because I poured powedered shock into the pool over the winter when the water wasn't circulating (don't do that!) -- now I'm grinding them off by hand witha diamond abrasive pad screwed to a long metal pool and it's grueling work. There's no way a checmial would take these off - even a wire brush didn't make a dent. Good luck