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5 Written questions

5 Matching questions

  1. What electronegative element, combined with any other element has an oxidation number of -1
  2. The following changes indicate what? Lose of electrons, compound increases in oxygen content, or compound decreases in hydrogen?
  3. reduced
  4. How do you determine the volume of a solid?
  5. When does combination, synthesis, or formation reactions occur?
  1. a Fluorine
  2. b place solid into the liquid of a partially filled graduated cylinder until it is completely submerged
  3. c when two substances, usually in their elemental forms, combine to form a compound.
  4. d Reactant gains electrons (becomes more negative)
  5. e reactants are oxidized

5 Multiple choice questions

  1. Oxidation-Reduction or Redox Reaction
  2. Aluminum and gallium
  3. g/mL
  4. when combined with other elements
  5. Precipitate

5 True/False questions

  1. When combined with nonmetals, what is the oxidation number of Hydrogen?+1


  2. What is the oxidation number of Gp VIIA elements in compound unless combined with a more negative element?zero


  3. ions from two different compounds change places to form two new compounds.Double Displacement or Double Replacement Reaction Ex. AB+CD=AD+CB


  4. Reactions that absorb heat from their surroundingsExothermic Reactions


  5. What is the unit used to express the density of a solid?g/mL


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