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8 SC Bonds&Reactions

8th grade physical SC chemical bonds and reactions

DefinitionWord
Substance that changes the rate of a chemical reaction without being used up or changed very much Catalyst
Solid that's produced as a result of a chemical reaction in a solution Precipitate
A substance or molecule that participates in a chemical reaction Reactant
A reaction in which 2 or more substances combine to form a new compound Synthesis Reaction
A combination of chemical symbols and numbers to represent a substance Chemical Formula
Process by which one or more substances change to produce one or more different substances Chemical Reaction
An electron that is found in the outermost shell of an atom and that determines the atom's chemical properties Valence Electron
An interaction that hold atoms or ions together Chemical Bond
Law that states that mass can't be created or destroyed in ordinary physical and chemical changes Law of Conservation of Mass
A chemical reaction that requires energy input Endothermic Reaction
The combining of atoms to form molecules or ionic compounds Chemical Bonding
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products Chemical Equation
The regular pattern in which a crystal is arranged Crystal Lattice
The smallest unit of a substance that keeps all of the physical and chemical properties of that substance Molecule
A chemical reaction in which energy is released to the surroundings as heat Exothermic Reaction
A substance that forms in a chemical reaction Product
Law that states that energy can't be created or destroyed, but can be changed from one form to another Law of Conservation of Energy
Minimum amount of energy required to start a chemical reaction Activation Energy
Substance that stops or slows down a chemical reaction Inhibitor
A bond formed when atoms share one or more pairs of electrons Covalent Bond
A bond that forms when electrons are transferred from one atom to another, which results in a positive ion and a negative ion Ionic Bond
A bond formed by the attraction between positively charged metal ions and the electrons around them Metallic Bond
A reaction in which a gas, solid precipitate, or a molecular compound forms from the exchange of ions between 2 compounds Double-Displacement Reaction
A reaction in which a single compound breaks down to form 2 or more simpler substances Decomposition Reaction
A reaction in which one element takes the place of another element in a compound Single-Displacement Reaction
A charged particle that forms when an atom or group of atoms gains or loses one or more electrons Ion
Created by: 200348345
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