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39 Cards in this Set
- Front
- Back
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I Kg = ? Ib
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2.2 Ib
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1m= ? cm
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100 cm
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Filtrate
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the liquid gone through the filter paper and has been collected in the beak below the funnel is know as filtrate
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Precipitate
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a deposite of solid particles settled out of a solution
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Solvent
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capable of dissoving another substand
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Solute
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the substance dissolved in a given solution
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aqueous
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relating to or similar to or dissolved in water.
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Density =
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Density = Mass/vloume
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Meniscus
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the curve in the upper surface of a standing body of liquid, produced in response to the surface of the container
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density
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the ratio of an objects mass to the volume
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specific gravity
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the ration of the mass of a solid or liquid to the mass of an qual volume of sistilled water
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element
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are the simplest pure substance are composed only one kind of atom
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compound
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are pure substance too, consist of two or more elements always in the same proportion
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what happens the density of a liquid when heated?
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density will decrease
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what happens the density when the liquid is cooled?
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density will increase
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specific gravity
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specific gravity= Denisty of sample/density of water
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Ca(NO3)2
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Calcium nitrate
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Na2C2O4
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Sodium oxlate
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2Na(NO3)
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Sodium nitrate
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Zn(NO3)2
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Zinc nitrate
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NH4Cl
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Ammonium chloride
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NH4OH
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ammonium hygroxide
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ZnS
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Zinc sulfite
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HNO3
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Nitric acid
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Unsaturated
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more solute can be dissolved in a given amount of solvent at a given temperature
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Saturated
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stable solution in which no more solute can be dissolved in a give amount of solvent at a given temperature
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Recrystalization
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the formation of a new grain shtructure in a deformed material by the fromation and migration of high angle grain bouhdaries driven by the stoed energy of deformation
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diffusion
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tendency of solute and solvent molecules to move freely in solution
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dialysis
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movenent of molecules or ions through a semipermenable membrance that holds back large collocal particles.
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Copper (II) ion test
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presence of violet blue color indicates the presence of Copper(II) ion
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hydrated
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substance contain water
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anhydrous
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substane not contain water
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like dissolves like
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non polar compounds dissolve nonpolar compound, polar compunds dissolve polar compound, the solvent/solute molecurs are sturcrurllay similar the substance will dissolved in the solvent
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starch test
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appearce of deep purple color indicated presence of starch solution
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Acid
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a compound produces hydrogen ion H+ a pH less then 7.0
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Base
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form hydrocide ions OH-1
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Salt
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sodium chloride NaCl
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pH
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A pH scal measure how acids or basic a substance. pH scal from 0-14, pH of 7 is neutral, <7 is acidic, >7is basic
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Litmus paper
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to determ pH acid will change bule to red, base wil trun red to blue
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