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vocab of science 4th

Law of conversation of mass Nothing is ever created or destroyed
Physical change when matter is altered but the substance does not change
chemical change when the substence does change
Element any substence that can not be broken down into a simpler one by a chemical reaction
Chemical formula a representation of a substence using symbols
Element molecule a molecule that only has one type of element
compound molecule a molecule with several types of elements
chemical equation a symbolic representation of when chemicals come in contact
chemical reaction process that changes the molecular composition of a substance
reactants substance that reacts with another
product the result of two reactants
coefficient numerical constant mesuring the property of a substence
subscript number printed below the symbols of the element
Created by: bageman1