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6th Unit 2 Les.4 5 6

Properties of Matter

TermDefinition
Acid a substance that has a pH below 7, tastes sour, and makes blue litmus paper turn pink or red.
Base a substance that has a pH above 7, tastes bitter, and makes red litmus paper turn blue.
chemical bond a force that holds atoms together.
chemical change a change in matter that produces a new substance with different properties from the original.
chemical equation a way to represent a chemical reaction by using symbols for the amount of reactants and products in the change.
chemical property the way a substance reacts with other substances.
chemical reaction a process that produces chemical changes
law of conservation of mass a physical law that states that matter is not created or destroyed during a chemical reaction.
Neutralization the chemical change of an acid and a base into water and a salt.
physical change a change in size, shape, or state that does not form a new substance.
Precipitate a solid formed by the chemical reaction of two liquids.
Product the new substance produced in a chemical reaction.
Reactant an original substance at the beginning of a chemical reaction.
Reactivity how easily something reacts with something else.
Created by: jackietrahan