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Changes in Matter

Vocabulary for Physical and Chemical Changes of Matter

QuestionAnswer
melting point The temperature that matter begins to go from a solid state to a liquid state
chemistry the study of the properties of matter
boiling point The temperature that matter begins to go from a liquid state to a gas state
sublimation When a substance goes directly from a solid state to a gas state without going through the liquid state
chemical bond the force of attraction between two atoms
freezing The temperature that matter begins to go from a liquid state to a solid state
chemical formula tells the elements and ratio of atoms in a compound
condensation Matter goes from a gas state to a liquid state
deposition When a substance goes directly from a gas state to a solis state without going through the liquid state
physical property a property of matter that you can observe without changing the matter into a new substance
physical change a change that alters the form or appearance of matter, but does not change it into a different substance
chemical change a change in matter that produces one or more new substances
Law of Conservation of Mass matter is not created or destroyed in any physical or chemical change
energy the ability to do work or cause change
chemical property a characteristic of matter that can be observed as it changes to a different type of matter
thermal energy total energy of all of the particles in an object- energy of heat
concentration The amount of particles in the reactants
reactants substances present before the reaction takes place
combustion rapid combination of a fuel with oxygen; produces heat, light, and new substances
products new substances present after a reaction
Created by: hallet
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