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chemistry terms 2
| definition | term |
|---|---|
| C compund with a CC tripple bond | alkynes |
| particle with 2 protons and 2 neutrons (Helium nucleus) | alpha particle radiation |
| negatively charged ion | anion |
| theoretical reactor that produces more fissionable fuel than it consumes | breeder reactor |
| electrode where oxidation occurs | anode |
| atomic mass unit, weight of C12 atom | AMU |
| number of protons in the nucleus of an atom | atomic number |
| 6.022 x 10^23; number of particles per mole of a substance | Avogadro's number |
| H+ acceptor; produces an excells of OH- ions in solution | base |
| radiation composed of electrons | beta particle |
| unit of energy; 1 cal = 4.18 joules | calorie |
| electrode at which reduction occurs | cathode |
| chargfe holding abiligy | capacitance |
| positively charged ion | cation |
| a molecule that cannot be superimposed on its mirror image | chiral |
| attractive forces between like molecules | cohesive forces |
| smallest amount of fissionable material needed to sustain a chain reaction | critical mass |
| transfer of heat by contact | conduction |
| transfer of heat by circulation currents | convection |
| Ohm's law (I=V/R) | current/voltage relationship |
| Mass/volume ratio | density |
| aka heavy hydrogen, extra neutron | deuterium |
| light spreading when passing through a slit | diffraction |
| change in sound frequency due to object moving | Doppler effect |
| solid carbon dioxide | dry ice |
| substance that produces ions in a solution | electrolyte |
| electromotive force; electrical pressure measured in volts | EMF |
| reaction in which heat is absorbed | endothermic |
| measure of disorder in a system | entropy |
| reaction in which heat is given off | exothermic |
| charge equal to 1 mole of electrons | faraday |
| splitting of a large nucleus into two or more | fission |
| joining of 2 light nuclei to form a more massive one | fusion |
| gas temp/volume relationships | charles' law |
| gas pressure/volume relationship | boyle's law |
| lowest energuy and most stable state | ground state |
| energuy required to melt a solid | heat of fusion |
| energuy required to vaporize a liquid | heat of vaporization |
| commercial ammonia making process | Haber process |
| PV=nRT | ideal gas law |
| electrically charged atom | ion |
| compounds whose molecules are the same but have different structures | isomer |
| atoms of the same element with different nummber of neutrons, thus having different molecular weights | isotope |
| energuy of motion | kinetic energy |
| electron pair acceptor | Lewis acid |
| electron pair donor | Lewis base |
| number of protons and neutrons in a nucleus | mass number |
| curved upper surface of a liquid column | meniscus |
| liquids that mix with eachother in all proportions | miscible |
| concentration given by: moles of substance./liters of solution | molarity |
| 6.02 x 10^23 particles of a substance | mole |
| product of mass and velocity of an object | momentum |
| electronically neutral particle w/ that same mass as a proton | neutron |
| gasses that dont form compounds easily | noble gasses/ inert gasses |
| net movement of a solvent towards an area of greater solute concentration | osmosis |
| process in which a substance loses one or more electrons | oxidation |
| molecule with 3 oxygen atoms | ozone |
| bundle of light particles | photon |
| repeating units of molecules in a chain | polymer |
| rate at which work is done | power |
| transfer of heat by waves | radiation |
| light bending | refraction |
| Moh's Scale | scale of hardness |
| density of an object relative to water | specific gravity |
| relationships among the quantities of products and reactants in a chemical reaction | stoichiometry |
| substance that undergoes a change at low temperatures that allows it to conduct electricity with zero resistance | superconductor |
| intermolecular cohesive attraction that causes a liquid to minimize its surface area | surface tension |
| energuy is conserved | thermodynamics law #1 |
| entropy (disorder) is increasing | thermodynamics law#2 |
| device that changes electrical voltage | transformer |
| temperature at which solid, liquid, and gas phases exist in equilibrium | triple point |
| outermost electrons used in bonding | valence electrons |
| tending to evaporate readily | valatile |
| movement of an object against a force | work |