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Chem 5 common assess

common assessment #1 review

two or more different arrangements of atoms of the same element in a solid state allotrope
the type of solid that has no ordered crystal structure amorphous
this is caused by the collision of air particles with the surfaces of objects air pressure
the temperature at which a substance changes from a solid to a liquid melting point
the temperature at which a substance changes from a liquid top a gas boiling point
the regular, ordered, repeating arrangement of atoms or molecules in most solids crystal
vaporization that takes place only at the surface of a liquid evaporation
vaporization that takes place throughout a liquid boiling
the energy of motion kinetic energy
the theory that states that all matter is made of particles that are always moving kinetic theory
a graph of the relationship between vapor pressure and temperature of a substance phase diagram
the temperature and pressure at which a substance may exist as a solid, liquid and gas simultaneously triple point
the change of state from a solid directly to a gas sublimation
the smallest group of particles of a solid that have the shape of the crystal unit cell
space without matter vacuum
the force of a gas above a liquid vapor pressure
this occurs when the rate of evaporation equals the rate of condensation in a closed container dynamic equilibrium
1 atmosphere 760 mm Hg or 101.3 kPa
a temperature of 0 degrees C and pressure of 1 atm Standard temperature and pressure (STP)
the temperature at which particulate motion ceases absolute zero
the closeness of a measurement to the actual value accuracy
a measure of how close together a series of measurements is precision
the capacity to do work or produce heat energy
the temperature scale that is based on the movement of particles Kelvin scale
([error]/accepted value)x100= percent error
experimental value-accepted value = error
a change in which new substances are formed chemical change
characteristics of how a substance reacts with other substances chemical properties
a change in which no new substances are formed physical changes
characteristics that can be measured or observed without changing the substance physical properties
a substance that is composed of atoms of different elements combine chemically in precise ratios compound
a property that is not dependent on the size of the sample extensive property
a property that depends on the size of the sample intensive property
matter can neither be created nor destroyed law of conservation of mass
a solid that forms when two liquids react precipitate
the end result of chemical reactions products
the substances that react in a chemical reaction reactants
a homogeneous mixture in which all components appear in the same phase solution
the substance that gets dissolved solute
the substance that does the dissolving solvent
a mixture in which particles are small enough to scatter light but large enough settle out suspension
a mixture in which the particles are small enough to scatter light, but do not settle out. Most of these are white in color. colloid
the gaseous state of a substance that is normally a solid or a liquid at room temperature vapor
Created by: phuddles