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AP Biology Campbell 7e Ch2 Flashcards

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The chemical context of life.

Terms : Hide Images
599261534MatterAnything that takes up space and has mass.
599261535ElementA substance that cannot be broken down to other substances by chemical reaction.
599261536CompoundA substance consisting of two or more different elements combined in a fixed ratio.
599261537Trace ElementsElements that are only required in minute quantaties. Ex; Iron and Iodine
599261538Essential ElementsNatural elements known to be essential to life. Ex: Carbon, Oxygen, Hydrogen, Nitrogen, Phosphorous, Sulfur, Calcium, and Potassium.
599261539EnergyThe capacity to cause change.
599261540Potential EnergyThe energy that matter possesses because of it's location or structure.
599261541Hydrogen BondWhen a hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom.
599261542Van der Waals InteractionsWeak and only occur when atoms and molecules are very close together; Responsible for a gecko walking up the walls.
599261543ReactantsStarting materials in a chemical reaction.
599261544ProductsThe end material(s) of a chemical reaction.
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