what is the function of the anhydrous calcium chloride?
360847
anhydrous calcium chloride ive been using for 6 years in chemistry !! as far as i know it is used very oftenly where dry conditions are needed. the anhydrous calcium chloride has a high affenity to water, it will react with any water around where it is placed. so it is used to absorb water from the surrounding enviroment to make it anhydrous!! after it reacts with water it changes to hydrous calcium chloride (or just 'calcium chloride').
909343
Calcium is in the second column of the periodic table, meaning that it has two electrons in its outermost s-shell.\n\nThat means that as an element, it really "wants" to get rid of those two electrons.  So it's going to "try" to be a 2+ ion.\n\nLikewise, Oxygen is in column 6, meaning it has 6 electrons in it's outermost p shell.  Meaning it "wants" to gain 2 electrons to fill up its p-shell.  So it's going to try to be in molecules where it can share two electrons with other atoms.
386162
Calcium phosphate is Ca3(PO4)2.  Phosphorus trichloride is PCl3.  Determine the molecular weight of each and then figure out how much of that weight comes from phosphorus.\n\nUsing approximate atomic masses,\n\nCa3(PO4)2 = 3*40 + 2*31 + 8*16 = 310; %P = 62/310 = 20%\n\nPCl3 = 31 + 3*35.5 = 137.5; %P = 31/137.5 = 22.5%
509901
Calcium chloride dihydrate should saturate at 93% w/v roughly (20 celcius).\n\nShould you be required to calculate it, extrapolate saturation of CaCl2 (f.w. 147.02) with the saturation of NaCl, which saturates at 37% w/v at 20 celcius roughly.
1020952
Saturated sodium chloride solution is highly polar, and will help to drive large amounts of water and other non-organic materials out of the organic solution (water will have a greater affinity for the salt solution, and will also attempt to dilute the salt).  The last traces of water will be grabbed by the anhydrous calcium chloride (though magnesium sulfate or sodium sulfate work better, as they are usually more granular).
205870
CaCO3(s) + 2HC2H3O2(aq)-> Ca(C2H3O2)2(aq) + H2O(l) + CO2(g)
169996
Calcium(II) Telluride\n\nCalcium ion Ca2+\nTelluride ion 2-\n\nFormula Weight 167.678 g/mol
732214
Ca is II A elements which have 2 valence electron. Therefore it charges are 2+. Chlorine charges is -1 because of it have 7 valence electron. \nHence, to make a compound neutral one Ca must make bonds with two Chlorine, making CaCl2.\n\nNa is I A elements which have 1 valence electron. It have a charge of +1. Hence, to make the chloride of natrium, one natrium only can make a bond with one chlorine atom, resulting in NaCl.\n\npeace\nvixklen
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E.g. For cements. Calcium aluminates have very good step-wise hydratation properties.\n\nhttp://www.utexas.edu/research/cmrg/projects/CAC.html
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the benefits of calcium to the human body are practically immeasurable, and new research shows it can even help prevent tumors and other health problems.\n\nthe major role of calcium is to help build strong bones, calcium can aid the human body in many different functions, reducing a person's risk for high blood pressure, osteoporosis and some cancers. \n\nCalcium, found most abundantly in milk and milk products, also helps regulate muscle contraction, clotting of blood, transmission of nerve impulses, secretion of hormones and enzyme activation.
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CaCl2+ 2NaHCO3 + 2H2O------> 2NaCl + 2H2CO3 + Ca(OH)2 \n\n\nyou have to add water molecules on left hand side         \n                                                                                  \nwill this help you?
709021
All chlorides are water soluble\n\nEXCEPTIONS: AgCl, Hg2Cl2
717028
oxidation of the calcium in the shell
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Actually, Calcium in it's pure form doesn't exist in nature, as it is highly reactive with water.  It is only found in compounds such as chalk (CaCO3), lime (Ca(OH)2) or gypsum (CaSO4), which can erode to very fine particles which then become SUSPENDED in water.
440454
the R.A.M. is the average mass of an atom of an element, taking account of its natural isotopes & their percentage abundance.\neg: the R.A.M. of CaCl2  :\n     the exam paper will give you the the R.A.M. s of Calcium-40 & Chlorine - 35.5,so the answer is,\n         = (1*40)+(2 * 35.5)\n         = 40+71\n         = 111\n     hope this helped.Cheerz!
415111
It is done with an apparatus called a Downs Cell. It's a specially designed electrochemical cell which can electrolyze molten CaCl2 to produce elemental Ca and Cl2. It's also the same apparatus used to produce metals such as Na and Mg.
372262
Calcium is essential for complex life.\n\nFirst of all, calcium is essential for our nervous system to operate properly. When an action potential reaches the end of an axon, it causes calcium to rush into the axon terminal. This stiumulates the release of neurotransmitters into the synaptic cleft. Without calcium, transmisson of signals in the nervous system would be impossible.\n\nSecond of all, calcium is essential for muscle contraction. When a muscle is stimulated to contract, calcium rushes out from the sarcoplasmic reticulum and binds to a molecule called troponin. This causes a conformational change in tropomyosin, which allows actin and mysin to bind and the muscle to contract. Without calcium, muscle contraction would be impossible.\n\nThird of all, calcium is essential for the formation of bone. Without the structure and support provided by bone, we wouldn't be much of anything.\n\nSo, calcium is most definately important for life, especially complex life.