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Is styrofoam the same as polystyrene?
They are made from the same polymer, polystyrene. Usually polystyrene is clear, hard and rigid, for example in CD cases. However, styrofoam is created by blowing air through liquid polystyrene. The bubbles are locked in the polystyrene as it solidifies, giving the syrofoam used in packaging and cups. The reason it is compressible is because the air is compressed, rather than the hard, rigid polystyrene itself.
How does water dissolve chalk?
Rather badly.
Will iron filing dissolve on water?
Iron filings do not dissolve in water. They are small pieces of iron that are insoluble in water and will float or sink in water rather than dissolve.
Do solids dissolve better in hot or cold water?
Dissolving is caused by the small rapid movements of the atoms or molecules. The faster they are moving, the better substances dissolve. As the molecules have more energy and therefore move faster in hot water, substances dissolve better there.
Why must the stem of the funnel touch the inside surface of the collecting beaker during filtration?
Ensuring the stem of the funnel touches the inside surface of the collecting beaker helps to prevent splashing or spillage of the liquid being filtered. It also helps to direct the filtered liquid smoothly into the beaker, minimizing the risk of contamination or loss of sample during the filtration process.
Can polystyrene sink in water?
No, polystyrene is less dense than water, so it will float on the water's surface rather than sink.
Can polystyrene pass UV light?
Polystyrene does not transmit UV light very well as it is a type of plastic that is typically opaque to UV radiation. UV light tends to be absorbed or reflected by the polystyrene material rather than passing through it.
Is styrofoam the same as polystyrene?
They are made from the same polymer, polystyrene. Usually polystyrene is clear, hard and rigid, for example in CD cases. However, styrofoam is created by blowing air through liquid polystyrene. The bubbles are locked in the polystyrene as it solidifies, giving the syrofoam used in packaging and cups. The reason it is compressible is because the air is compressed, rather than the hard, rigid polystyrene itself.
If you place iodine in a beaker of H2O will it float?
Iodine is denser than water, so it will sink in a beaker of water rather than float.
Why is polystyrene useful as a clothing material?
Polystyrene is not typically used as a clothing material due to its characteristics. Polystyrene is more commonly known for its use in packaging and insulation due to its lightweight and insulating properties, rather than in the clothing industry.
How does water dissolve chalk?
Rather badly.
Why must the stem of the funnel touches the inside surface of the collecting beaker during the filtration?
it's done to minimize the mixing of air into the filtered solution. By touching the stem to the collecting beaker, the solution flows into the beaker smoothly rather than splashing into it.
How of increasing the amount of a substance that will dissolve in a liquid?
I can dissolve more sugar in hot tea rather than cold tea.
What is the chemical reaction of petrol and thermocol?
It may look like polystyrene "melts" when petrol (gasoline) is poured on it. However, the petrol is actually dissolving the polystyrene. In chemistry, there is a common saying that "like dissolves like". Polystyrene is an alkene and petrol has several alkenes in it {benzene (up to 5% by volume), toluene (up to 35% by volume), naphthalene (up to 1% by volume), and trimethylbenzene (up to 7% by volume)} which aid in the dissolving of the polystyrene. Now the characteristics of both the ingredientsare lost and a new product is formed. This product shows the character of neither a solid nor a liquid. It is a translucent material which is brownish or yellowish white in color and with viscosity more than that of a liquid and less than that of a solid. While studying the properties of the material formed, it is found that it looks like glue and can be used as a strong adhesive.
Will organic fat dissolve in water true or false?
Yes it will dissolve in water!!!!1
Will iron filing dissolve on water?
Iron filings do not dissolve in water. They are small pieces of iron that are insoluble in water and will float or sink in water rather than dissolve.
How do you describe the beaker?
A beaker is a cylindrical glass container with a flat bottom and a pouring lip. It is used in laboratories for measuring, mixing, and heating liquids. Beakers come in various sizes and are commonly marked with volume graduations.
