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Kdd
initials
Question | Answer |
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covalent bond | A chemical bond that results from the sharing of valence electrons. |
molecule | forms wheb two or more atoms covalently bond and is lower in potential energy than its constituent atoms. |
lewis structure | A model that uses eletron-dot structures to show how eletrons are arranged in molecules. Pairs of dots or lines represent bonding pairs. |
sigma bond | A single covalent bond that is formed when an electron pair is shared by the direct overlap of bonding oribitals. |
pi bond | A bond that is formed when parallel orbitals overlap to share electrons. |
endothermic | A chemical reaction in which a greater amount of energy is required to break the existing bonds in the reactants than is released when the new bonds form in the product molecules. |
exothermic | A chemical reactions in which more energy is released than is required to break bonds in the initial reaction. |
oxyacid | any acid that contains hydrogen and an oxyanion. |
structural formula | A molecular model that uses symbols and bonds to show relative positions of atoms; can be predicted for many molecules by drawing the lewis structure. |