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24 Cards in this Set

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suspension
a mixture with small undissolved particles that do not settle out.

example: gelatin
solution
a substance that is present in a solution in a smaller amount and dissolved by the solvent
solvent
a mixture in which particles can be seen and easily separated by settling or filtration

example: water and pepper
solute
a well mixed mixture

example: water and salt
colloid
part of a solution present in the largest amount
dilute solution
has more dissolved solute than is predicted by its solubility at the given temperature
concentrated solution
temperature, pressure and type of solvent
solubility
does not hold as much of a solute as is possible at the given temperature
saturated solution
only a little solute is dissolved in the
water
unsaturated solution
more solute is dissolved in the water
factors that affect the solubility of a substance
a measure of how well a solute can dissolve in a solvent at a given temperature.
supersaturated solution
contains as much dissolved solute as possible at a given temperature
acid
a substance that tastes bitter, feels slippery and turns red litmus blue
indicator
compounds that share characteristic properties in the kinds of reactions they undergo.
base
a compound that changes color when in contact with an acid or a base
hydrogen ion (H+)
an ionic compound that can form from the neutralization of an acid with a base
hydroxide ion (OH-)
a reaction between an acid and a base
pH scale
rainwater that is more acidic than normal rainwater
acid rain
a positively charged ion formed of a hydrogen atom that has lost its electron
neutralization
a negatively charged ion made of oxygen and hydrogen
salt
a range of values from 0 - 14 that expresses the concentration of hydrogen ions in a solution
digestion
the process that changes large food molecules into smaller molecules
mechanical digestion
the process that breaks down complex molecules of food into smaller molecules
chemical digestion
the physical process that tears, grinds, and mashes large food particles into smaller ones