which is not a form of chlorine that disinfects water chlorine gas,chloroform,sodium hypochlorite,calcium hypo
396313
Chloroform.  It's an anesthetic (or, used to be).
966603
well, sodium chloride is soluble, so you won't be getting any solid product from it, but calcium carbonate is insoluble, so it would be solid. Calcium carbonate is what your looking for.
218345
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.
233816
None.  The sell chemicals with alkyl groups.  In CH3Cl, CH3 is the alkyl.  They don't exist on their own.  Start with\n\nhttp://www.sigmaaldrich.com/Local/SA_Splash.html
774868
Cl is an halogene, like F or Br.  They all have the properties to kill germs (Cl in pool water, F in toothpaste, Br in surgical antiseptics).
1050647
It depends on the levels. Very high is very bad for you. Chlorine is used to kill most germs in the pools. In Europe there are 2 pools, 1 which you swim in and the other to treat the water where the chloramines (cancer causing) are kept to a very very small level. In North America they use a different system which is much cheaper but uses higher levels of Ozone in their surge tank which gives a higher risk of cancer. Chlorine can cause also breathing problems and irritate your eyes. Also is can turn bleached hair green. On the plus side it can whiten your teeth. Flourine is similar to chlorine and is still in the tap water in North America due to the fact it gives you whiter, healthier teeth. But in Britain this was stopped some time ago due to the fact that it can cause health problems (still wonder why the Brits have bad teeth?). North America goes wholescale on all the water treatment processes from drinking water to swimming pools which is why costs are cheaper but health issues are sometimes skipped over. But the risk of swimming in un-chlorinated water is far greater! It is basically a stagnant lake otherwise. So chlorine can cause cancer on a small level but in North America it can be improved upon by implementing the decontaminating routine used in Germany where most chloramines are removed before people go swimming.
93527
When urine, sweat or other organic contaminants react with chlorine in pool water it produces what is called a chloromine. Chloromines cause the "chlorine odor" in swimming pools and can cause irritation to your eyes. \n\nChlorine really doesn't have much of an odor and this is easily confirmed.   A swimming pool only needs 1.5 or 2.0 ppm (parts per million) of a free availble chlorine residual to keep the pool water disinfected. A one gallon jug of liquid chlorine (sodium hypochlorite) is 12.5 % chlorine. The rest is referred to as "inert ingredients". Anyway, if we break down a jug of chlorine to ppm it comes out to 125,000ppm chlorine per gallon. That's 125,000ppm!!! Remember we only need 1.5ppm to keep our pool disinfected. Now take a whiff of the chlorine WHILE IT'S STILL IN THE JUG. It will have a very low odor. However, a swimming pool with a normal or lower chlorine residual (almost a 100,000 times lower) will smell like chlorine. Why? Because the existing chlorine in the water has combined with the organics to form a chloromine. \n\nBy the way, how do we get rid of that odor? Simple, we superchlorinate the water, which means adding usually 6 to 10 times the normal amount of chlorine to the water. This will oxidize the water of the exisiting chloromines and leave a normal residual of around 1.5 to 2.0 ppm.\n\nI know this may sound goofy to some people, but if you smell chlorine in a pool, to get rid of the smell, add more chlorine because the smell is NOT chlorine. It's true.
540014
Chlorine also produces HCl acid along with water but not Ozone.
182888
Yes some water parks can be very unsanitary. Although most water Parks take time to sterilize, and control unsanitary conditions often times certain aspects get over looked. Take for instance the public rest rooms, the items that fall on the floor out of the pool area or at the bottom of the pool like band aids. Clean up crews are not always working and some may be disgruntle employees.
942020
We've to get this clear first. Water is a polar solvent, gasoline is a non-polar solvent. By the principal of like-dissolves-like, polar molecules will dissolve in water, for example, NaCl; while non-polar molecules will dissolve in gasoline, for example, fats, phosholipids, alkanes, alkenes etc.\n\nFor the question you've asked,\nChloroform is a polar compund because Cl draws electrons from the carbon center and making Cl atoms have a higher concerntration of electrons. Hydrogen atoms in water carry a partially positive charge and hence are attracted to Cl molecule. Hence it is soluble in water.\n\nNa2SO4 is soluble in water. This is because it is actually 2 Na+ ions attached to SO4(2-) ions. Na+ ions get attracted to oxygen atoms in water which has a partially negative charge and SO4(2-) ions gets attracted to hydrogen atoms in water which has a partially positive charge.\n\nKCL is soluble in water because Cl atoms draws electrons from K. Follow the same reasoning as chloroform.\n\nFor BaSO4, it is insoluble in water. Only barium nitrate dissolves in water. Other barium salts do not.\n\nHope this helps! =)
985077
chlorine, Cl2, bromine, Br2, or iodine, I2 or fluorine
938598
Adding about a drop of chlorine bleach per gallon will kill bacteria. After a few hours the chlorine goes off as a gas. It is the free chlorine that kills the bacteria. The sodium hypochlorite decomposes to release the Cl2. A small amount of sodium salt is left in the water.
192043
It sort of depends on what you mean by contains water, sodium chloride in water is a solution containing water where water is the solvent.  Hydrochloric acid is another, (that is just HCl dissolved in water).  Hope this helps
821226
1. sodium hypochlorite\n2. hydrogen chloride\n3. concentrated sulphuric acid\n4. oxidising it, for example with potassium manganate(VII).\n\nIf you've done the other 96, well done!
267174
Chloride prevents bacteria and other organisms from growing in water, though it does have a chemical taste that some find unpleasant.  Otherwise in relatively low concentrations it is not harmful to health, and in fact chlorine is an essential electrolyte.  \n\nChlorine gas is of course, poisonous, but that's mostly because it is corrosive.
914690
a) You friend is wrong. Even pure water has some OH- and H3O+ ions. The concentrations are very low (10^-7), but they are there.\n\nb) There is Clorine in Clorox (sodium hypochlorite), and the bleaching reaction causes oxidation.
919260
NaClO is sodium hypochlorite\nNaClO2 is sodium chlorite\nNaClO3 is sodium chlorate\nNaClO4 is sodium perchlorate