State suitable reasons to justify that air is a mixture and water is a compound
Answers
Water is made up of elements Hydrogen and Oxygen with the chemical formula: H2O. It can easily be disassociated with electrolysis into the elements Hydrogen (H2) and Oxygen (O2), and reformed with combustion.
It has aspects of both covalent and ionic bonds. It is generally considered neutral, but can be a proton donor to act as a weak acid. H2O --> HO- + H+.
It can also act as a weak base, being a proton acceptor. H2O + H+ --> H3O
Water is a compound. It has molecules consisting of two hydrogenatoms bonded to one oxygen atom. So it is made of 2 different elements - Hydrogen and oxygen -- tobecome H20. Hydrogen is made out of two atoms hence the subscript number 2.
H 2 O It can be called dihydrogen monoxide but nobody uses that name except in jokes.
1. The components of air change from place to place...that of water stays the same (H:O = 1:16 by mass).
2. Water does not show the individual properties of H and O, while the individual parts of air display their own property.
3. You can separate different gases from air through a physical process. The only way to obtain H & O from H2O is to pass electricity through it...
Mixtures have a varying composition, show the individual chemical & physical props. of each component & in most cases, can be separated physically. The opposite is true for compounds.
So,air is a mixture and water is a compound.