O.K., so we're designing a new home and I've been reading a lot; books, magazines and forums such as this hoping to find the answer to the question... what is the most cost effective system to build an energy efficient home. SIPs, double stud walls, 2x6 wall with rigid foam insulation on the exterior, spray foam, cellulose and so on. So many options, so little time.
Water interacts differently with charged and polar substances than with nonpolar substances because of the polarity of its own molecules. Water molecules are polar, with partial positive charges on the hydrogens, a partial negative charge on the oxygen, and a bent overall structure. The unequal charge distribution in a water molecule reflects the greater electronegativity, or electron-greediness, of oxygen relative to hydrogen: the shared electrons of the O-H bonds spend more time with the O atom than with the Hs.
The HâOâH bond an-gle in water is 104.5, which means that the molecule has a bent shape. This bent geometry and the accumulation of electrons on the oxygen side of the molecule cause the water molecule to have a negative charge on one side, the oxygen side, and a positive charge on the other side, the hydrogen side. Molecules with negative regions and positive regions are called polar molecules. Water molecules are polar molecules. Polar molecules are attracted to each other. The attraction results from the negative region of one molecule, the oxygen atom, being drawn to the positive region of another molecule, the hydrogen atom.