What would you like to do?
What are air molecules and water molecules?
Air molecules is a little vague, the air that we breath is a mixture of mainly nitrogen (72% or so) oxygen and carbon dioxide. A water molecule is H20, two hydrogen polar covalently bonded to one Oxygen. Besides for the two bonds to H the oxygen also has 2 lone pairs of electrons. To spread the charge the molecule has a bent shape. Due to the difference in electronegativity between H and O and the shape of the molecule water is polar. This allows water to hydrogen bond which connect s the H from one molecule to the O of another molecule, holding water together as a liquid. When you boil water these intermolecular forces are overcome and each individual molecule separates from each other, creating water vapor ( which is water in the gas phase). However, each individual water molecule remains the same.
12 people found this useful
Was this answer useful?
Thanks for the feedback!
A combination of 2 hydrogen atoms and 1 oxygen atom.
have less weight
Once the water vapor starts to lose heat or starts to cool down it turns back into water which is known as condensation.
about ten days or so
Different elements have different electro-negativities. Electro-negativity is the ability of an atom to withdraw 'electron density' towards itself, i.e. it makes electrons com…e closer to it. Fluorine is the most electronegative of the elements. Oxygen is more electronegative than hydrogen and so in water (H2O) the oxygen 'pulls' the electrons closer to itself and become slightly negative, and the hydrogen's slightly positive, this is called a permanent dipole. Due to this effect water has many properties that make it unusual and important to living things.
Water is a type of polar molecule. It is polar because it has two hydrogen atoms bonded uniquely to one atom of oxygen causing different charges in different areas.
It is called evaporation. The water becomes a vapor (gaseous state) and is "dissolved" or "mixed" into the air.