Reducing Aire Pressure
To make pure crystals of alum from impure alum, start by dissolving the impure alum in warm water. Filter the solution to remove any impurities, and then cool the filtered solution slowly. As the solution cools, pure alum crystals will start to form. Carefully collect the crystals and allow them to dry to obtain pure crystals of alum.
Reducing the air pressure on the solution
i don't think the city of haiti was prepared for the earthquake as they are a poor country and probably wern't excpecting one!
It is a physical change. If it was a chemical change you would probably see fizzing. stefan boniaby
Utah is probably the top producer of topaz crystals in the US; a seemingly endless supply of superb transparent, colorless to sherry-colored crystals come from Topaz Mountain, but it's not the only state that produces good topaz.
To make pure crystals of alum from impure alum, start by dissolving the impure alum in warm water. Filter the solution to remove any impurities, and then cool the filtered solution slowly. As the solution cools, pure alum crystals will start to form. Carefully collect the crystals and allow them to dry to obtain pure crystals of alum.
You can eat some kinds of crystals... salt crystals and sugar crystals, for example. It's probably not a good idea to eat, say, quartz crystals, though.
Sugar and salt crystals are probably found in every kitchen.
Reducing the air pressure on the solution
you have to put it in a dissolving dish and wait over night for it to dissolve in the morning it will probably be dissolved
crystals are somtimes made with salt and suga but they are somthines just crtyles that are in caves
You think probably to sublimation of iodine.
Diamonds are probably the most well known crystals, but ice is the most common. no what the freak ice isn't a cyrstal... its frozen water =P
Freezing fog is probably what you're thinking of.
Probably. You should also look into getting a dictionary to look up the correct spelling of Fahrenheit.
Crystals in the urine are probably uric acid, although there are other possibilities such as oxalic acid. Crystals are not negative or positive, they are neutral. An ionic compound is composed of both positive and negative ions, which add up to a neutral compound.
i don't think the city of haiti was prepared for the earthquake as they are a poor country and probably wern't excpecting one!