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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
Which of the following is a function of the major mineral calcium?
Calcium function: Calcium is needed for healthy bones and teeth, normal blood clotting, and nervous system functioning.
Calcium sources: Calcium is found in dairy products, broccoli, cabbage, kale, tofu, sardines and salmon.
The function of calcium is to make your bones healthier and make your teeth much stronger :D
What are the products of Calcium and Hydrochloric acid?
CaCO3 + 2HCl -> CaCl2 + CO2 + H2O
Produces a salt, calcium chloride, carbon dioxide gas and water.
How do you prepare calcium buffer?
This might not be the best answer but, preparing a buffer solution allows one to keep the pH value the same when small amounts of acids or bases are added. Buffer solutions resist change in pH.
Source: My Chemistry teacher's PowerPoint
Can calcium become stable by losing 1 electron?
Calcium loses its two valence electrons to become Ca 2+ ion.
Will a reaction take place if zinc is put in calcium nitrate?
no because copper is a less reactive metal
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
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.
Ca(OH)2 (calcium hydroxide) (Apex)
I am not sure of the answer so can someone help me pls
