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4/7/16

science

QuestionAnswer
Matter anything with mass and takes up space
Mixture a blend of two or more kinds of matter; mixed together physically and can usually be separated
Heterogeneous mixtures not uniform throughout
Homogeneous mixtures are uniform throughout; also called "solutions"
Solvent the dissolving medium in a solution
Solute the substance being dissolved in a solution
Alloys solid solutions in which the atoms of two or more metals are uniformly mixed
Suspensions mixtures more or less evenly6 dispersed throughout a liquid or gas
Colloids particles that are intermediate
Tyndall effect the particles are large enough to scatter light
Solubility The ability of a substance to be dissolved
pH the measurement of the concentration of H+ ions
Neutral neither acid nor base
pOH concentration of OH0- ions
Electrolytes solutions that conduct electricity because of the free movement of ions.
Buffers help prevent a change in pH or pOH
The Buffer in the human body's blood is Bicarbonate (HCO3)
Most Acids and bases are great electrolytes.
matter can be classified as a pure substance or as a mixture
Solutions are homogeneous mixtures in a single phase
Solutions exist as solids, liquids, or gases
example of alloys: brass (made of zinc and copper) silver (made of silver and copper)
advantages of alloys include higher strength and greater resistance to corrosion
example of suspensions: muddy water
Created by: eallen156