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14 Cards in this Set

  • Front
  • Back
a combination of elements or compounds that are physically blended together but not bound by chemical bonds
List three common liquid mixtures.
solutions, colloids, suspensions
Once mixed together, solutes in a solution remain _____________ ______________ among the sovent molecules.
evenly dispersed
Because the solute particles in a solution are very small, a solution looks _______________ and _______________.
clear, transparent
How is a colloid different from a solution?
A colloid differs from a solution mainly because of the sie of its particles--large enough to scatter light
Colloids usually appear _______________ or ______________.
translucent or opaque
Is milk a colloid or a solution?
milk - both a colloid and a solution - large milk proteins make it a colloid, calcium salts, milk sugar (lactose), ions and other small particles are in solution
True or False.
Solutes in solutions and colloids settle out and accumulate on the bottom of the container.
False. Solutes do not settle out in solutions and colloids.
the suspended material may mix with the liquid or suspending medium for some time, but eventually it will settle out
Name an example of a suspension.
How is the concentration of a solution expressed?
a mass per volume percentage; moles per liter
What is the mass per volume percentage?
gives the relative mass of a solute found in a given volume of solution
What is moles per liter?
(mol/L) units which relate to the total number of molecules in a given volume of solution
the amount of any substance that has a mass in grams equal to the sum of the atomic masses of all its atoms.