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5 Written questions

5 Matching questions

  1. acid
  2. product
  3. pH
  4. ion
  5. catalyst
  1. a substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation.
  2. b substance that releases hydrogen ions (H+) when dissolved in water; an acidic solution has a pH less than 7.
  3. c substance that speeds up a chemical reaction by reducing the activation energy.
  4. d atom that is negatively or positively charged because it have lost or gained one or more electrons.
  5. e measure of the concentration of hydrogen ions (H+) in a solution.

5 Multiple choice questions

  1. large molecule formed by joining smaller organic molecules together
  2. substance in which another substance is dissolved.
  3. molecule with oppositely charged regions
  4. particle without a charge in an atom's nucleus
  5. positively charged particle in an atom's nucleus.

5 True/False questions

  1. amino acidsubstance that releases hydrogen ions (H+) when dissolved in water; an acidic solution has a pH less than 7.

          

  2. compoundpure substance with unique properties; formed when two or more different elements combine.

          

  3. solutionhomogeneous mixture formed when a substance (the solute) is dissolved in another substance (the solvent).

          

  4. reactantpure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means

          

  5. nucleic acida subunit of nucleic acid formed from a single sugar, a phosphate group, and a nitrogenous base.