how can do a double salt?
371415
use extra speed and use more energy at the start
719242
1) Salt water is more dense.\n\nMeasure out one cup of tap water and one cup of the sample your testing.  Determine their mass by placing them on an accurate scale one at a time.  If the sample has greater mass then the tap water then it has salt in it.\n\n2) Salt does not evaporate.\n\nPut the sample into a pot on the stove and boil it.  If crystals form on the side of the pan then their is salt in the sample.  Be careful not to boil away all the water or you may damage the pan.\n\n3) Humans can taste salt.\n\nOur tounges are very sensitive to salt.  The problem is that some salts are poisonous.  If you know for certain that the type of salt you are testing for is table salt (NaCl) then go ahead and taste it.  Otherwise, try other methods.\n\n4) Osmosis\n\nThere are membranes ( called semi-permeable) that allow water molecules to pass through them but not things like ions ( the things salt breaks down into in water).  Water will flow from one side of a membrane to the other to try and ballance the concentration of salts on either side.  In other words, water will flow through the membrane from the side with less salt to the side with more.  The skin of a grape is a membrane of this type.  Drop it into your sample and if it shrivels up then the sample has salt in it.  This may take a couple days though.\n\nHope this helps.
808032
Chef can pour half as many quarts of 4% and add a pint of water for each in a bowl. The butterfat in a 4% can make twice as many 2%.
569033
Do a double major of both!
72719
This sounds so excessive! What a crazy teacher you must have. :)\n\nAlright - well...\nThe gravel is the easy part. Use the screen as a sift and hopefully the screen will be fine enough that none of the gravel will get through. \n\nNow the plan of action is dump the powder and salt in the water. [Which I guess will be done in Cup #1.] You'll filter out the powder. The salt will dissolve in the water, and you will evaporate the water later. The question is how to do this with what you have.\n\nI'm thinking the craft sticks are to hold up the funnel. Arrange them over the top of the cup [Cup #2] so that they make a triangle and see if it'll hold up the funnel. \n\nPut a filter paper in the funnel. Pour the mixture in and the powder will collect in the funnel. When you're done, take out that first filter paper and set it aside. Then set up your funnel in Cup #3 with the second piece of paper and filter the mixture a second time just to make sure you got all of the powder.\n\nI was trying to think of what the syringe could possibly be for, and the only thing I can think of is to take the salt-water out of Cup #3 and into the evaporation dishes.\n\nNo idea what the magnifying glass is for.\n\nBut the basic idea is that you sift out the gravel, mix the powder&salt in water, fliter out the powder, then dissolve the water.
558126
Reduce your salt intake, drink water regularly, eat a balanced diet.
661119
sodium chloride or salt
219490
eat some hot & spicy stuff rich in salt
1172866
this can be a problem to you if you don't know anything about simultaneous equation or if u don't know how to form simultaneous equation. another thing is u should at  least have an  idea about chemistry. look\n  \nm1v1+m2v2=MV.............1\nm1+m2=total volume after dilution=150Lt..............2\n now\n              take m1 is the initial conc of saline soln=32%=0.32\n                   ''  v1                      volume                 =?\n                 m2 is the conc of water =0\n                 v2 is the volume of water =?\n               M is the final conc of the soln = 20%=0.20\n                V is the final volume of the soln obtained after mixing=150Lt\n\nnow\n             0.32v1+0*v2=0.2*150......................1\n\n             v1+v2=150.................2\nfrom eqn 1\n                      0.32v1=30\n           so v1= 93.75Lt's\n   so the remaining amount is of water\n                v2=150-93.75=56.25lts\nso you need 56.25litres of water and 93.75litres of 32%saline to prepare the solution you need.\n\nif you have these solution just try to mix at that proportion then u will tell me.
174475
mix it...let NaCl dissolve in water...then let the mmixture evaporate or perhaps bring the mixture into a boil 'til you can see the formation of crystals...   try it... i've encountered such experiment in my chemistry class... im not quite certain of the procedures though...it's two years ago...cant remember it well...^_^
308462
i suppose the question i ask is have you actually ever done this?\n\nto seperate sand and water obviously you pour some water in a beaker with your sample and stir it, you filter the solution using a glass funnel and a filter paper.  you take the filter paper after you have finished and open it up and let it dry with the sand on, you take the water from the filtrate beaker and leave it to evaporate in a watchglass and then scrape the salt off.
508648
use water with salt spray.
735098
Regular salt will be just fine my friend.\nGood Q\nGood luck
880704
The pH of the salt depends on the strengths of the original acids and bases:\n\nAcidBaseSalt pH\nstrongstrongpH = 7\nweakstrongpH > 7\nstrongweakpH < 7\nweakweakdepends on which is stronger\n\nThat should be what you want.
520225
iodized salt or baking soda
17656
Best technique is to look for where it is unbalanced and change it so it is balanced. Repeat until it is balanced.\n\neg. We need 2 hydrogen here on the left, so go for:\n\nMg + 2HCl -> MgCl + H2\n\nNow we need another 2 as we have 2 Cl on the left and one of the right.\n\nMg + 2HCl -> 2MgCl + H2\n\nNow we need to have 2 Mg on the left as we have 2 Mg on the right. So we get:\n\n2Mg + 2HCl -> 2MgCl + H2\n\nAll balanced so that is the answer.
904474
Do not crush the rock salt as this will make the impurities harder to remove.\n\nDissolve the rock salt in very hot water and filter.  If the filtrate (the water that comes through the filter) is colored, then you might need to treat it with charcoal to remove these soluble impurities.\n\nOnce you have a clear solution, allow some of the water to evaporate until the solution becomes saturated.  A single seed crystal will start the formation of sodium chloride crystals from the solution.  Stirring will keep the crystals smaller, otherwise you can end up with one very large crystal of salt.\n\nThis crystallization process is what does the final purification.  The crystals formed will be almost pure sodium chloride.