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5 Written questions

5 Matching questions

  1. Covalent Bond
  2. Deoxyribonucleic acid
  3. protons
  4. solvent
  5. Atom
  1. a The building blocks of elements.
  2. b Bond formed from molecules where atoms share electrons.
  3. c Atomic particles with a positive charge.
  4. d nucleic acid found in all living cells:carries the organism's hereditary information.
  5. e the liquid in which a solute is dissolved to form a solution.

5 Multiple choice questions

  1. Provides a form of chemical energy that all body cells can use. WIthout this, molecules cannot be made or broken down, cells cannot maintain boundaries, and all life processes stop.
  2. Determine what type of or
  3. the main building material of all cells.
  4. small molecules that are the building blocks of proteins.
  5. Bond formed when electrons are completely transferred from one atom to another.

5 True/False questions

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


  2. Decomposition ReactionThe type of exchange reaction in which an acid and a base interact.


  3. CarbohydratesContain carbon, hydrogen and oxygen.


  4. BasesHydroxides ionize and dissociate in water releasing hydroxyl ions (OH-)


  5. Atomic Numbernumber given to an element equal to the number of protons its atoms contain.