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20 Cards in this Set
- Front
- Back
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Define Atom
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Smallest basic unit of matter.
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Define Element
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Particular type of atom and it cannot be broken down into simpler substances.
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Define Compound
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2 different elements bonded together.
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Define Ionic Bond
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Forms through the electrical force between oppositely charged ions.
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Define Covalent Bonds
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Forms when atoms share a pair of electrons.
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Define Cohesion
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Attraction among molecules of a the same substance
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Define Adhesion
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Attraction of molecules that are different substances.
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Define pH scale
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Measures the acidity or H+ level of concentration.
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Define Monomer
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Sub-unit of a Polymer.
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Define Polymer
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Large molecule made of many monomers.
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Define Carbohydrate
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Functions: Energy. Made of mono saccharides.
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Define Lipid
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Nonpolar molecules that include fat and oils. Functions- Cell structure/energy. Made of complex carbon molecules.
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Define Protein
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A polymer made of monomers called amino acids. Functions- Structure
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Define Nucleic Acid
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Functions- Stores and builds protein. Made of nucleotides
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Define Chemical Recation
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Change substances into different substances by breaking and forming chemical bonds.
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Define Bond Energy
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Energy needed to break or form a bond.
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Define Equilibrium
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Reactants and Products of a reaction form at the same rate.
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Define Activation Energy
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The energy needed to start a chemical reaction.
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Define Catalyst
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Lowers activation energy needed and increases the rate of a chemical reaction.
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Define Enzyme
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Catalysts for chemical reactions in living things.
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