list the advantages of mercury in thermometric substances
because a substance cannot be decomposed into simplier substances by chemical or physical means
iodine and mercury
There is not given temperature. Mercury can be virtually any temperature just like all other substances.
the solids that will float on liquid mercury are coal, ironware's or objects with lower specific density
It depends on the liquid. As an example, bromine and mercury are elements and can not be broken down into simpler substances.
Mercury will not stick to most materials besides a few metals. Generally, like substances stick together, which is why mercury would not stick to the tube.
Mercury is not a property; it is a substance. Like all substances it has its own unique set of physical and chemical properties.
If it is an element, then by definition there is nothing else present.
Mercury, like most substances, expands when it gets hotter and contracts when it gets colder. A mercury thermometer is designed so that the volume of the mercury can be accurately observed, as the mercury rises or falls in a marked column.
No, electrolytes are those substances which produce ions in solution or in molten form, Mercury is a pure liquid metal and conduct the electricity.
Out of those substances, mercury has the greatest density. So for the same volume, mercury will be the heaviest and carry the most inertia.