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all chm vocab

questionAnswer
catalyst a substance that increases the rate of a chemical reaction by lowering activation energies but is not itself consumed in the reaction
chemical change a process involving one or more substances changing into a new substance also called a chemical reaction
phase changes a change of state solid liquid or gas
diatomic two atoms N2 Cl2 F2 H2 I2 Br2 O2
Double replacement A chemicall reaction that involves the exchange of positive ions between two compunds and products either
precipate a solid produced during a chemical reaction in a solutionb
chemucal bonds the force that holds two atoms together may form by the attraction of a positive ion for a negative ion or by the attraction of a positive nucleus for negative electrons
thermochemistry study of changes of energy changes that happen during chemical and phases changes
Boyle's law The volume of a given amount of gas held at a constant temperature
Charles law Volume of a given mass of gas is directly proportional to its kelvin tempature at constant pressure
combined gas law relationship among pressure volume and tempature of a fixed amount of gas
molar volume for a gas the volume that one mole occupitios at 0.0 celsius at 1.00atm pressure
dipole dipole forces The attracttion between oppositely charged regions of polar molecules
sublimation the energy requiring processs by a solid changes directly into a gsas without first becoming a liwquid.
evaporation a phase change liquid to gas
condensation phase change gas to liquid
melting phase change solid to liquid
freezing phase change liquid to solid
deposition phase change gas to solid
enthalpy change in energy due to a chemic reaction or or phase change
symbol J Heat variable is q
symbol g grams measures mass variable m
symbol kpa pressure P
symbol atm pressure p
symbol L Liters V
Created by: CousinoRSC
 

 



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