Mr. Howell AP BIO class.
Vanden High School.
Terms : Hide Images
| 1657522094 | Polar Molecule | Opposite ends with opposite charges | 0 | |
| 1657522095 | Why is water considered polar? | The oxygen have a negative charge and hydrogen has a positive charge. | 1 | |
| 1657522096 | Hydrogen Bonding | The slightly positive hydrogen is attracted to the slightly negative oxygen of a nearby molecule. | 2 | |
| 1657522097 | How many hydrogen bonds can a single water molecule form? | Four. | 3 | |
| 1657522098 | Cohesion | The tight structure of molecules | 4 | |
| 1657522099 | Adhesion | The clinging of one substance to another | 5 | |
| 1657522100 | Demonstrated when you see beads of water on a waxed car hood. | Adhesion | 6 | |
| 1657522101 | Property explaining the ability of a water strider to walk on water. | High surface tension of water. | 7 | |
| 1657522102 | calorie | the amount of heat it takes to raise the temperature of 1 gram of water by 1 degree Celsius | 8 | |
| 1657522103 | What does it mean that water has "high specific heat"? | It will change its temperature less when it absorbs/loses heat. | 9 | |
| 1657522104 | How hydrogen bonding contributes to water's high specific heat | The heat is used to disrupt hydrogen bonds before the water molecules can begin to move faster. | 10 | |
| 1657522105 | How does water's high specific heat contribute to the moderation of temperature? | Water on Earth keeps temperature fluctuations on land and water within limits that permit life. | 11 | |
| 1657522106 | Evaporation | Transformation from a liquid to a gas. | 12 | |
| 1657522107 | Heat of Vaporization | The quantity of heat a liquid must absorb for 1 gram of it to be converted from a liquid to a gas. | 13 | |
| 1657522108 | Why does ice float | It is less dense than water. | 14 | |
| 1657522109 | Solvent | Dissolving agent | 15 | |
| 1657522110 | Solute | Substance dissolved | 16 | |
| 1657522111 | Solution | liquid that is completely a homogeneous mixture of two or ore substances | 17 | |
| 1657522112 | Why is water such a fine solvent | It is versatile because of its polarity. It can dissolve almost any molecule. | 18 | |
| 1657522113 | Hydrophobic | Repel water. Non ionic and non polar. | 19 | |
| 1657522114 | Hydrophilic | Likes water whether polar or ionic | 20 | |
| 1657522115 | Two ions when water dissociates | Hydroxide ion (-OH), hydronium (H30+) | 21 | |
| 1657522116 | Acid | increases hydrogen ion concentration | 22 | |
| 1657522117 | Base | Reduces hydrogen ion concentration | 23 | |
| 1657522118 | How do buffers moderate pH change? | They accept hydrogen ions from the solution when they are in excess and donating hydrogen ions to the solution when they have depleted. | 24 |
