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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

Does calcium react with hydrochloric acid?

Yes very well it produces calcium chloride, carbon dioxide, and water.

The reaction is CaCO3 + 2HCl --> H2O + CO2 + CaCl2

This occurs because the carbonate ion pulls hydrogen ions away from the hydrochloric acid, forming carbonic acid which is unstable and spontaneously decomposes into water and carbon dioxide

How much calcium in calcium silicate?

it is a white free flowing powder derived from limestone

Why was calcium add to toothpaste?

A small amount of flouride is supposed to reduce tooth decay, so it is added to some toothpastes. Too much flouride is known to be harmful, so toothpaste without flouride is also available.

Why does calcium belong to period 4?

Because it contains one more valence electron than the third-lowest atomic numbered noble gas, argon. The noble gases are at the ends of periods.

How The calcium hydroxide is formed?

Can I answer with a question? How is calcium hydroxide formed? What is "lime water"

What are the benefits of Calcium and Vitamin D?

Calcium and Vitamin D are essential for having healthy, strong bones. It is important to have enough Calcium and Vitamin D in a person's diet. Calcium also helps a person's blood to clot.

What does a calcium channel blocker do?

A calcium channel blocker is a chemical that stops the motion of calcium in your body. It is a drug to decrease blood pressure and helps with hypertension.

Is the concentration of calcium lower or higher in capillary specimens?

The concentration of calcium in capillary specimens is generally lower than in venous specimens. This difference can be attributed to the effects of tissue metabolism and the dynamics of blood flow in capillaries. Additionally, capillary blood may have a different composition due to the mixing of interstitial fluid, which can further influence calcium levels. Therefore, when interpreting calcium levels, it's important to consider the source of the blood sample.

How calcium cannel blocking drug works?

Calcium channel blockers are a class of medications that inhibit the influx of calcium ions through voltage-gated calcium channels in the cell membranes of smooth muscle and cardiac cells. By blocking these channels, they reduce calcium availability, leading to relaxation of vascular smooth muscle, decreased heart contractility, and reduced heart rate. This action helps to lower blood pressure, alleviate angina, and manage certain arrhythmias. Common examples include amlodipine, diltiazem, and verapamil.

Where do you find calcium?

Calcium can be found in dairy products like milk, cheese, and yogurt, as well as in leafy green vegetables, nuts, seeds, and fortified foods such as orange juice and tofu.