yes
The presence of impurities either on the surface or dissolved in it, affect surface tension of the liquid. Highly soluble substances increase the surface tension of water, whereas sparingly soluble substances reduce the surface tension of water.
The surface tension of a liquid decreases with increase in temperature. The surface tension of a liquid becomes zero at its boiling point and vanishes at critical temperature.
By affecting a penny or anything else with water.
surface tension of liquid increases with dissolved impurities.
chemical
Liqiud water can turn to ice faster than it can turn to gas. It can boil faster than it can freeze though.
is ice an example of the liqiud state of matter?
Distilled water is a poor conductor. For conduction in any liqiud it must have +ve and -ve charged ions. Water in pure state doesn't dissociate appreciably to give enough ions for electrical conduction. But when soluble ionic compounds are added to it, their ions help water molecules to dissociate and give more ions for good conduction.
It is called an emulsion. The liquids are immiscible (i.e they do not mix), however, an emulsifying agent prevents them from separating on standing. (in simpler terms, if you leave the mixture undisturbed, you will not get two distinct layers like oil on water thanks to the agent) One liquid is called the continuous phase (the background). The other is called the dispersed phase (seen as suspended globules).
It is hard and not liqiud so it does not make an egg float.
when liquid evaporate, it turns into a gas. The evaporation process causes cooling on the surface of where the liqiud originated
yes that's why when it is left at rest the surface is perfectly level (except where it contacts the container) gravity pulls all the liquid down as far as possible and that's what causes the level surface
Yup
condensation
plasma
the temperature
Heat it.
they are completely different
liqiud solid and gas
Mercury and Bromine
Solid