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5 Written questions

5 Matching questions

  1. Hydrogen Bond
  2. Neutralization reaction
  3. solvent
  4. Acids
  5. Enzyme(catalyst)
  1. a A substance that can release hydrogen ions (H+) in detectable amounts. having a sour taste and can dissolve many metals of burn a hole in your rug. pH below 7
  2. b Extremely weak bonds formed when a hydrogen atom binds to one electron hungry nitrogen or oxygen atom is attracted to another electron hungry atom and a bridge if formed between them.
  3. c The type of exchange reaction in which an acid and a base interact.
  4. d the liquid in which a solute is dissolved to form a solution.
  5. e functional proteins that act as biological catalysts. A catalyst is a substance that increases the rate of a chemical reaction without becoming part of the product or being changed itself.

5 Multiple choice questions

  1. Bond formed from molecules where atoms share electrons.
  2. Atoms with the same number of protons and electrons but vary in the number of neutrons they contain.
  3. Heavier isotopes of certain atoms are unstable and tend to decompose to become more stable.
  4. When two or more different atoms bind together to form a molecule.
  5. a substance that takes part in and undergoes a chemical change during a reaction.

5 True/False questions

  1. Exchange reactionsInvolve both synthesis and decomposition reactions. AB+C->AC+B and AB+CD->AD+CB


  2. Electron ShellsNegatively charged atomic particles.


  3. Nucleic AcidsDetermine what type of or


  4. MatterRegulates the acid base balance in the body.


  5. Organic compoundsLack carbon and tend to be small, simple molecules.


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