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5 Written questions

5 Matching questions

  1. ions
  2. mixture
  3. 1 amu
  4. pH
  5. sift the sand out
  1. a a combination of two or more substances that are not chemically combined
  2. b How would you seperate sand from water?
  3. c what is the mass of a neutron?
  4. d charged particles that form during chemical changes when one or more valence electrons transfer from one atom to another
  5. e a measure of how acidic or basic a solution is

5 Multiple choice questions

  1. where are reactants found in a chemical equation/
  2. arranged the periodic table by increasing atomic mass
  3. do metals tend to lose or gain electrons?
  4. type of reaction electrolysis is used for
  5. what color would pH paper turn in water?

5 True/False questions

  1. colloida mixture in which the particles are dispersed throughout but are not heavy enough to settle out

          

  2. +3what charge does a magnesium ion have?

          

  3. period 7in what period is Neptunium found?

          

  4. diatomic elementan element that is capable of covalently bonding two of that same element's atoms together in a molecule

          

  5. valence electronsthe electrons in the outermost energy level of an atom