Evaporation and/or condensation will separate out the components of a solution but will not be able to separate the pure liquid into anything.
a solution and a pure liquid may be distinguished by boiling point test. the solution has wide boiling range while the pure liquid boils at sharp temperature.
Distillation
Is the question whether or not the substance is water or another liquid, or is the question if the water is completely pure. Either way, the test you perform really depends a lot on what you think it might be or what impurities it might have. There are several electrochemical and spectroscopic techniques that are possible, but I can't be more specific without more information about the question. Another question: What if it is stomach juice?
selawinoff's test
"INCREASING THE PRESSURE" this is the answer key in my test.
This test is performed to test the presence of cysteine in the test solution (protein solution)
cool flame is used when you want to maintain your liquid at a constant elevated temp.
Distinguished Boiling Test
You will have to do an experiment to find this out. You can get the proper tools and see what compounds are in both solutions.
Iodine solution!
test the pureity of water
Is the question whether or not the substance is water or another liquid, or is the question if the water is completely pure. Either way, the test you perform really depends a lot on what you think it might be or what impurities it might have. There are several electrochemical and spectroscopic techniques that are possible, but I can't be more specific without more information about the question. Another question: What if it is stomach juice?
You use Universal Indicator solution.
When you add items that can be dissolved, and it doesn't dissolve in the liquid, it means that it is saturated.
Evaporated liquid from the solution (transformed in gas) or gases released by thermal decomposition and condensed in the cooler part of the test tube.
not if it is a pure form of aspirin if itt test positive (turns purple) it is impure and still has salicyclic acid
Add chalk (Calcium carbonate) if it is an acid the chalk will 'fizz' as it reacts and it will give off carbon dioxide gas. Or just use a universal indicator solution or test with litmus paper.
"INCREASING THE PRESSURE" this is the answer key in my test.
selawinoff's test