Important Concepts Regarding Covalent Bonds

Important Concepts Regarding Covalent Bonds - Oxidation and...

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Important Concepts Regarding Covalent Bonds Energy and Covalent Bonds Energy is often defined as the ability to cause change. For example, movement requires energy. Energy is required to form a covalent bond and energy is released when a Covalent bond is broken. Covalent bonds can therefore be used by organisms to store energy. The energy that is stored can be used to perform work. Oxidation-Reduction Reactions Oxidation is the loss of elecrons from an atom or molecule. It is also the loss (removal) of hydrogen atoms from a molecule. A loss of energy is associated with the loss of electrons or hydrogen atoms. Reduction is the gain of electrons or the gain of hydrogen atoms. This process stores energy.
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Unformatted text preview: Oxidation and reduction occur together. When a atom or molecule is oxidized, another must be reduced. Example: Na + Cl Na + Cl-- The Na is oxidized; the Cl is reduced. Electrons (or hydrogen atoms) function as energy carriers. An atom or molecule that is reduced (gains electrons or hydrogen atoms) also gains energy as a result of the oxidation. Similarly, oxidation is associated with the loss of energy. Reactions in which one atom or compound is reduced and another is oxidized are called redox reactions....
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