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5 Written questions

5 Matching questions

  1. Base
  2. Activation Energy
  3. Molecule
  4. Lipid
  5. Atomic Number
  1. a Nonpolar molecules that are not solube in water ( can dissolve )
  2. b Compound that Reduces the concentration of hydrogen ions (increases (OH-))
  3. c The number of protons in the nucleus of an element.
  4. d The energy needed to start a chemical reaction
  5. e A group of atoms held together by convalent bonds

5 Multiple choice questions

  1. The number of protons plus the number of neutrons.
  2. Compound that Increases the concentration of hydrogen ions (h+) in solution
  3. The attraction between substances of the same kind.
  4. A mixture in which one or more substances is evenly distributed in another substance
  5. Forms when 2 or more atoms share electrons to form a molecule

5 True/False questions

  1. CatalystSubstances that reduce the activation energy of a chemical reaction

          

  2. SubstrateSubstance that is dissolved

          

  3. CarbohydrateOrganic compounds made of carbon, hydrogen, and oxygen atoms.

          

  4. Surface TensionCaused by the attraction between water molecules; prevents the surface of water from easily breaking.

          

  5. CompoundA substance made of the joined atoms of two or more different elements.

          

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