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chemistry chpt 12

chpt 12 solutions

QuestionAnswer
mixtures,very unique components of mixture, not chemically combined. No definet proportions because you can put different amounts together, solutions
constant properties throughtout homogeneous
dissolving substance solute
what is being dissolved solvent
alchol dissolves in water,breaking down in alcohol molecule.liquids are not in direct contact with the same particles all the time so there already at fundamental state. liquid in liquids
mercury in silver liquid in solid
penny and nickel melt them and put them together.solution forms between metals when they are in a liquid state is an alloy. solid in solid
do not produce enough light for us to see them fundamental particles
particles susppended in a medium. ex.sand and water,the sand will eventually go to the bottom. suspensions
how can you make the sand suspended longer? break them up into smaller particles,and if you make them small enough the action of medium you can keep it suspended indefinetly.
particles not at fundamental state, but are small enough to remain suspended indefinetly colliod suspensions
larger can see light reflected ex.milk right from cow. colloids
property that can be used to distinguish between a solution and a colloid. tyndall effect
solution that contains ions electrlytes
these solutions have charged particles in their and make electric. electrolyte
solutions contains all of dissolve solute that it can Hold under present conditions. saturated
two ongoing processes occuring at the same time. dynamic equilibrium systems
solution that contains more dissolved solute than a saturated contains under the same conditions. supersaturated
substance is the amount of that substance required to form a saturated solution with a specific amount of solvent at a specific temperature solubility
the solution process with water as the solvent hydration
liquids that are not soluble in eachother immiscible
solubility of a gas in a liquid is directly proportional to the partial pressure of that gas on the surface of the liquid. henry's law
liquids that dissolve freely ion one another in any portion miscible
the rapid escape of a gas from a liquid in which it id dissolved effervescence
a solute particle that is surrounded by solvent molecules. solvated
the net amount of energy absorbed as heat by the solution when a specific amount of solute dissolves in solvent, enthalpy of solution
if negative value exothermic
if positive value,if temperature is higher it will occur more frequently then lower temperature. endothermic
step one salt crystals (solute particles) have to seperate eachother it requires energy therfore is endothermic solution.
step two water must make room for salt particles (solvent particles must seperate) needs energy to do this so is engothermic
step three attachment of solute and solvent particles,come together causing energy to be released (so is exothermic)
Created by: this_isme
 

 



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