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Chem midterm

week 3 & 4

TermDefinition
evaporation conversion from Liquid phase to gas phase
condensation conversion from a gas form to a liquid form
Deposition conversion from a gas state to a solid state
sublimation conversion from a solid state to a gas state
melting conversion from a solid to a liquid state
freezing conversion from a liquid state to a solid state
phase change the change of matter from one phase to another
ideal gas -particles move independently -space between particles is larger then particles - particles do not attract or repel -elastic collisions -kinetic energy =system temp
ideal gas constant: R units:0.08206 LxATM/molxK
STP standard temperature & pressure temp=0c(273.15K) pressure=1ATM At this temp 1mole of gas will occupy 22.4L
acid species that donates an h+ ion in an acid/base reaction
salt an ionic compound that can be formed in a neutralization reaction. Consist of a cation = Anion. Total charge must be zero
PH measure of H+ concentration. The lower the PH the higher the H+ concentration and vice versa
Proton (H+) hydrogen cation with a positive charge. Released by acids and accepted by bases. Forms H30+ cations in aqueous solutions
hydrogen Bonds intermolecular force that forms between a slightly positive H atom on one molecule and a slightly negative H atom on the other
Base species that accept an H+ ion in an acid/base reaction
strong acid an acid that completely releases all available H+ fully in water. Decisive (one way arrow)
weak acid an acid that partially releases H+ in water. indecisive. (two way arrow
strong base Made of a metal an OH- anion. Releases OH ions completely in water (one way arrow
weak base partially produces H- ions in water. represented by a two way arrow
Created by: klyons33
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