Some are, some aren't. Coffee is a liquid that isn't particularly clear. Vodka is another liquid that is clear.
chemistry
semen should be a thick clear substance
It is defined as the separation process in which two immiscible liquids are separated. This is done by pouring out the clear upper layer of liquid. Separation of a mixture of oil from water is an example of decantation.
amphetemines
Some are, some aren't. Coffee is a liquid that isn't particularly clear. Vodka is another liquid that is clear.
A result you actually physically see. For example "liquid changes from clear and colourless to clear and yellow".
if there was some salt in it i would like to boil this.then liquid will evaporate or there are many ways for finding is that was mixture or not?for example chromatography distillation solubility using magnet and so on.
This is commonly used when describing liquids. "Clear" in this context means that you can see through the liquid, so if you put a penny (for example) in a cup of this liquid, you could still see the penny. "Colourless" would mean that the liquid was the same colour as water. Clear but not always colourless means that the liquid may have a tint (so it may be blueish or greenish or some other colour) but you can still see through it.
look like liquid
It depends some on the type. Most of them - yes.
No apple sauce is not a clear liquid! =)
Vinegar is a solution of acetic acid in water.
Yes. The bubbles of fluid heat up and expand causing them to be less dense than the clear liquid. That is why it floats. When it gets to the top it cools and shrinks and becomes more dense than the clear liquid.
Many liquid glues dry clear. All cyano-acrylates do.
Water is a clear liquid that all plants and animals require to survive!
chemistry