1 / 7

Properties of Water

Properties of Water. 1. Polarity -. Polar molecules have a positive (+) and a negative (-) side. In water, the Hydrogen is positive and the Oxygen is negative . 2. Cohesion -. The positive hydrogens are attracted to the negative oxygen of a neighboring water molecule.

kimball
Télécharger la présentation

Properties of Water

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Properties of Water

  2. 1. Polarity - Polar molecules have a positive (+) and a negative (-) side. In water, the Hydrogen is positive and the Oxygen is negative.

  3. 2. Cohesion - The positive hydrogens are attracted to the negative oxygen of a neighboring water molecule. The molecules are held together by these Hydrogen bonds.

  4. Examples of Cohesion: • The shape of raindrops • Water beading up on a newly polished car • The convex surface of water when a container is filled to nearly overflowing • Surface tension – an organism can walk on water if it doesn’t break the hydrogen bonds holding the water molecules together. (water strider, basilisk)

  5. 3. Adhesion - Because water molecules are polar they stick to other substances. Ex:water sticks to the side of the graduated cylinder forming a meniscus

  6. The volume is read from the bottom of the meniscus.

  7. 4. Capillarity - Water moves up narrow tubes by a combination of adhesion and cohesion. This is how water gets from the roots to the leaves.

More Related