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Ch. 6 Vocab. PS

QuestionAnswer
Matter anything that has matter and takes up space.
Chemistry the study of matter and how it changes
Physical Property a characteristic of a substance that can be observed without changing the substance into another substance.
Chemical Property a characteristic of a substance that describes its ability to change into another substance.
Physical Change any change that alters the form or appearance of a substance but does not change into another substance.
Chemical Reaction a change in matter that produces one or more new substances is a chemical change.
Chemical Equation a short, easy way to show a chemical reaction, using symbols instead of words
Precipitate a solid that forms from solution during a chemical reaction.
Endothermic Reaction a reaction in which energy is absorbed.
Exothermic Reaction a reaction that releases energy in the form of heat.
Reactants the substances you have at the Beginning of a chemical equation.
Products the substances you have when a reaction is complete
Conservation of Mass matter is not created or destroyed
open system matter can enter into or escape to the surroundings
closed system matter is not allowed to enter or leave
coefficient a number placed in front of a chemical formula in an equation.
enzyme a biological catalyst
inhibitor a material that releases energy when it burns
combustion a rapid reaction between oxygen and a fuel.
fuel a material that releases energy when it burns
concentration the amount of substance in a given volume
Created by: Alex Espinoza
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