Pure water, sodium chloride, sucrose, list goes on...
kinds according structures and use of the substance
Mole is the unit for amount of a substance in SI.
Yes, it is correct.
a compound
It is a controlled substance used to treat certain kinds of headaches.
No it isn't. An element is one kind of atom, it is not made of different kinds of atoms.
That process is called a chemical reaction.
Yes, or actually it's several substances. There are many different kinds of sugar.
You think probable to a binary molecule.
Plants have these things called roots that suck up all kinds of stuff.
A type of mixture that is formed when one substance dissolves into another and fills the spaces between other kinds of molecules is called colloidal solution.
No. An element is a pure substance made of only one kind of atom. A compound is a pure substance made of two or more kinds of atom.