science:how dso we know which materials mix best to give us the produut we want?
607262
Trial and error.  Find something that works, and people will buy it.  If someone finds something that works better, you go out of business!
395302
mixture is combining substances, solution is dissolving a substance in another
416430
There are various means of determining this, and without any specific data on what elements are involved in the answer you are looking for, the link below is the best reference I can find that can answer this question in a mostly generalized way.
968063
Substances in a mixture just need to be separated, which might happen naturally over time, or could be done by filtration, distillation or a centrifuge (which spins fast to take heavier items out of the mixture).  \n\nElements in a compound are chemically bonded, so you have to reverse the bonding process, which is different depending on the elements in the compound.  If it is a salt, it is as simple as adding water and using electricity to pull the ions you want out.  Once you do, those ions are not all going to be elements--further manipulation will be needed.  Other chemicals are much more complicated though.
1154934
Online conversion figures these things out for you!\n\nYou have to choose liquid or dry matter.  But the answer is there.
882835
Probably carbon latice structures, like buckeyballs or nanotubes.  These could then contain the smaller compounds that are doing the desired work.
266694
Balance the equation.\n\nDetermine what the limiting reactant is.\n\nDetermine how much product can be produced from the limiting reactant.\n\nDetermine how much of each reactant is needed to fully react the limiting reactant.  The remainder of each reactant is the excess.
207715
Hello,\n\nThe idea behind Job's method is to prepare a series of reaction mixtures (for example solutions) in which the total number of moles of the reactants is fixed but with different ratio. One then plots the number of moles of product vs the ratio. The maximum of the curve will occur at the correct stoichiometric ratio.\n\nIn your case, one could prepare solutions containing a total number of moles (i.e. moles of Ni + moles EDA) equal to 1 with the following composition:\n\nmoles Ni     moles EDA Ratio Ni/EDA\n0.9                0.1           9        \n0.8                0.2           4\n0.6                0.4          1.5\n0.4                0.6          0.666\n0.2                0.8          0.25\n0.0                1.0          0.0\n\nOne then needs to measure the amount of Ni-EDA complex and plot that amount agains the ratio. The maximum will tell you which is the right stoichiometric ratio. Hope this helps. See the web site below for a more complete explanation.\n\nOne then measures the
712818
more soluble in what solution?
1041907
There are always instructions on the bottle the powder comes in. Remember if you want the plates to solidify, check that the powder contains the agar (ie - look at the ingredients) or else look at the agar ratio (1.5%) and determine how much you need to add.
780911
I think you can get it from chemical companies; those are the same places where science departments in schools get theirs.\nThat should give you an idea of where to look.
544143
Experiment w/ what works for you.
1114420
make sure you know the material you are being tested on
100734
There are a variety of sources. If it's a physical constant, I'd suggest the CRC Handbook of Chemistry and Physics or Langer's Book of Chemistry. You might also try the chemical literature through scifinder, if you are at a university that has a subscription.
274862
Most substances actually have a "critical point," where at a specific temperature and pressure, they exist in all three states in a tri-equilibrium. For a more practical example, a snowcone sitting in the hot sun would probably qualify as a mixture of all three, though not an even mixture, and not at any real sort of equilibrium. Matter as plasma exists as high energy charged ions, so you're probably not going get that mixed in with the other three, though you can get a mixture of plasma and one other, most likely. But then, it's not like we run into plasma very often anyway.\n\nEDIT: Plasma has to change from something, so you're going to get a mixture at least while the matter changes to plasma from its earlier state, for however long that transition lasts. A stable mixture would be a lot more rare, but more likely to succeed as a gas/plasma mix than anything else.
304001
I suggest that you create a supersaturated solution first. Reason being that the more highly saturated the solution, the better the formation of the crystal and the larger the end product. This can easily be done by heating your solvent to a very high temperature and stiring in copious amounts of whatever is going to make up your crystal. Lower the heat as it goes and you should idealy end up with a very viscous solution, not so much of a liquid but more to the kind of stuff you get when you mix a bit of cornstarch with water. Thereafter dump everything in a beaker or bowl and suspend a thin wax thread in the solution itself. Cover up the bowl and leave to set for a few days. If you have done it correctly you should see a very nice, large crystal forming. Just a note though, don't let the thread touch the bottom of the bowl or even any thing other than the solution, or your crystal will be lopsided
293378
There are thousands of polymers all with very different chemical and physical properties.  so a simple answer can not be given.  perhaps a specific polymer would obtain better responses.