Term
| Hydrogen bonding in water results in... |
|
Definition
| cohesion, surface tension, and adhesion |
|
|
Term
| Name four properties of water related to temperature. |
|
Definition
| High Specific heat, high heat of vaporization, high heat of fusion, and unusual solid (it is less dense). |
|
|
Term
|
Definition
| only 2 out of a billon water molecules ionize or break down to hydrogen ions and hydroxide ions. The bottomline is that water contains equal amouint of H+ and OH- |
|
|
Term
| Give and example of a buffer. |
|
Definition
| When H+ is aboundant, the human body produces bicaronate, which reacts with the H+ and yeilds a weak acid called carbonic acid. That is eventually breathed out of the mouth as CO2 |
|
|
Term
|
Definition
|
|
Term
|
Definition
| makes free radicals stable or inactive |
|
|
Term
|
Definition
|
|
Term
|
Definition
| same elements with different number of neutrons |
|
|
Term
| Name one of the functional groups. |
|
Definition
| Hydroxyl (-OH),Carbonyl(-CHO)(-CO),Carboxyl(COOH), Amino (NH2), Sulfhydryl (SH) |
|
|
Term
|
Definition
Ketone- within the carbon skeleton
Aldehyde- at the end on the carbon skeleton |
|
|
Term
|
Definition
|
|
Term
| 2 types of covalent bonds |
|
Definition
nonpolar=equal sharing
polar=unequal sharing |
|
|
Term
| When atoms lose or gain an electron... |
|
Definition
| they for ions such as Na+ and Cl- |
|
|
Term
| define surface tension, cohesion, and adhesion. |
|
Definition
surface tension-A measure of how difficult it is to stretch or break the surface of a liquid. Water has a high surface tension because of the hydrogen bonding of surface molecules.
cohesion-The linking together of like molecules, often by hydrogen bonds.
adhesion-The clinging of one substance to another, such as water to plant cell walls by means of hydrogen bonds. |
|
|
