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