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When evaporating a solution why should you not heat it till its completely dry?
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How do you prepare polymer blend?
By dissolving 2 polymers, mixing the solution, adding a surfactant and evaporating the solvent. Alternatively you can heat the polymers above the melting point and mix them
What do you observe when you add salt water in a steel bowl and heat the solution till it evaporates completely?
nothing
Water is distilled by evaporating it usually by adding something and bringing it to boil?
Water is distilled by evaporating it, usually by adding heat and bringing it to boil
Can sugar be seperatd from sugar solution?
Yes, sugar can be separated from a sugar solution by evaporating the water, such as by heating or by using a vacuum. However, if heat is used one must be careful not to overheat the sugar, as it can decompose.
Why do you heat the sodium sulfate solution?
It is not mandatory to heat this solution.
Is direct heating using Bunsen burner flame advisble when evaporating the soduim cholride solution?
As long as the solution is a water-based solution, it should be fine. You should never ever use a Bunsen burner to heat a flammable liquid such as alcohol, ether, acetone, etc.
Why should you stop heating the solution before the liquid has completely evaporated?
The reason one should stop heating the solution before the liquid has completely evaporated is because heat will continue to carry over even after it is removed from the flame. This means that the liquid will continue to evaporate for a little longer.
What happen to a solid when you heat it?
it start evaporating
What does water need to begin evaporating?
What needs a heat source to begin evaporating. Normally the sun is the heat source that evaporates water on the earths surface.
How do you prepare polymer blend?
By dissolving 2 polymers, mixing the solution, adding a surfactant and evaporating the solvent. Alternatively you can heat the polymers above the melting point and mix them
When is heat absorbed from the earth's water cycle?
When it is evaporating
What could casue a kitchen worktop to go white?
Depends on what it is made of. Heat, cleaners, chemicals, bleach solution, extreme hard water evaporating over time. One or all of these.
What do you observe when you add salt water in a steel bowl and heat the solution till it evaporates completely?
nothing
Water is distilled by evaporating it usually by adding something and bringing it to boil?
Water is distilled by evaporating it, usually by adding heat and bringing it to boil
What involves the greatest amount of heat when warming 100 grams of ice?
When warming 100 grams of ice the greatest amount of heat is involved when evaporating the water. Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance.
When you look when driving you see water puddles evaporating?
Heat-induced mirage.
What is used to collecting and evaporating liquids with no heat?
some liquids can decompose when heated
