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Matter & Energy Ch 2

Vocabulary from Ch. 2: Properties of Matter

QuestionAnswer
physical properties the characteristics of a substance that can be observed without changing the identity of the substance.
density a measure of the amount of matter present in a given volume of a substance.
physical change a change in any physical property of a substance, not in the substance itself.
chemical properties describe how substances can form new substances.
chemical change the change of one substance into another substance.
melting point the lowest temperature at which a substance begins to melt.
freezing point the temperature at which a specific liquid becomes a solid.
evaporation a process by which a liquid becomes a gas.
sublimation when a solid changes directly to a gas.
freezing the process by which a liquid becomes a solid.
boiling another process by which a liquid becomes a gas; produced bubbles.
boiling point the temperature at which a liquid changes to a gas through boiling.
condensation the process by which a gas changes its state to become a liquid.
Created by: misskazantzis
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