Water and Life
Terms : Hide Images
| 11028589598 | polar covalent bond | when electrons of the covalent bond spend more time closer to the more electronegative molecule | 0 | |
| 11028589611 | polar molecule | molecule with an unequal distribution of charge, resulting in the molecule having a positive end and a negative end | 1 | |
| 11028589612 | cohesion | the binding together of like molecules, often by hydrogen bonds | 2 | |
| 11028589613 | adhesion | attraction between molecules of different substances | 3 | |
| 11028589614 | surface tension | a measure of how difficult it is to stretch or break the surface of a liquid | 4 | |
| 11028589599 | heat | the total kinetic energy dud to motion of its molecules | 5 | |
| 11028589600 | temperature | the average kinetic energy of the molecules | 6 | |
| 11028589615 | calorie | unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure | 7 | |
| 11028589601 | kilocalorie | the amount of heat it takes to raise the temperature of 1 kg by 1 degree celcius | 8 | |
| 11028589616 | joule | SI unit of energy, used to measure work | 9 | |
| 11028589617 | specific heat | the heat required to raise the temperature of one gram of a substance one degree centigrade | 10 | |
| 11028589618 | heat of vaporization | the amount of energy required for the liquid at its boiling point to become a gas | 11 | |
| 11028589619 | evaporative cooling | the property of a liquid whereby the surface becomes cooler during evaporation, owing to a loss of highly kinetic molecules to the gaseous state. | 12 | |
| 11028589602 | solution | a liquid that is a completely homogenous mixture of two or more substances | 13 | |
| 11028589603 | solvent | the dissolving agent of a solution | 14 | |
| 11028589604 | solute | the substance that is dissolved | 15 | |
| 11028589605 | aqueous solution | solution where water is the solvent | 16 | |
| 11028589620 | hydration shell | sphere of water molecules around each dissolved ion | 17 | |
| 11028589606 | hydrophilic | any substance that has an affinity for water | 18 | |
| 11028589607 | hydrophobic | any substance that repels water | 19 | |
| 11028589608 | capillary action | the tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension | 20 | |
| 11028589621 | colloid | a stable suspension of fine particles in a liquid | 21 | |
| 11028589622 | molecular mass | the sum of the masses of all atoms in a molecule | 22 | |
| 11028589623 | mole | an amount of substance that is equal to the number of atoms in 12 grams of carbon-12 | 23 | |
| 11028589624 | molarity | concentration measured by the number of moles of solute per liter of solvent | 24 | |
| 11028589625 | hydronium ion | H3O+ | 25 | |
| 11028589626 | hydroxide ion | OH- | 26 | |
| 11028589627 | hydrogen ion | H+ | 27 | |
| 11028589609 | acid | substance that increases hydrogen ion concentration of a solution | 28 | |
| 11028589610 | base | a substance that reduces the hydrogen ion concentration of a solution | 29 | |
| 11028589628 | buffer | an ionic compound that resists changes in its pH | 30 | |
| 11028589629 | pH | a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions. | 31 | |
| 11028589630 | ocean acidification | decreasing pH of ocean waters due to absorption of excess atmospheric CO2 from the burning of fossil fuels | 32 | |
| 11028589631 | acid precipitation | rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water | 33 |
