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Chemcial reactions

physical science,

TermDefinition
chemical equations a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
reactant a chemical substance that is present at the start of a chemical reaction.
product a chemical substance formed as a result of a chemical reaction.
coefficient a number in front of a chemical formula in an equation that indicates how many molecules of each reactant and product are involved in a reaction.
subscript a number in a chemical formula that tells the number of atoms in a molecule or ratio of elements in a compound.
Conservation of Mass the principle stating that matter is not created or destroyed during a chemical reaction.
chemical bond the force of attraction that holds two atoms together as a result of the rearrangement of electrons between them.
Electron Dot Diagram the symbol of an element surrounded by dots that represent valence electrons.
Valence Electrons the electrons that have the highest energy level and are held loosely.
Ionic Bond Metal to Nonmetal bond of opposites.
Covalent Bond Nonmetal to Nonmetal bond of sharing electrons.
alloy a mixture of two or more elements that has the properties of metal.
Created by: giles7