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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 |