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5 Written questions

5 Matching questions

  1. Exchange reactions
  2. Bases
  3. Nucleic Acids
  4. Matter
  5. Chemical reaction
  1. a Hydroxides ionize and dissociate in water releasing hydroxyl ions (OH-)
  2. b Involve both synthesis and decomposition reactions. AB+C->AC+B and AB+CD->AD+CB
  3. c Occur whenever atoms combine with or dissociate from other atoms.
  4. d Determine what type of or
  5. e Anything that has mass and takes up space.

5 Multiple choice questions

  1. number given to an element equal to the number of protons its atoms contain.
  2. When two or more different atoms bind together to form a molecule.
  3. When two or more atoms combine chemically.
  4. a homogenous mixture of two or more components.
  5. Carbon containing compounds.

5 True/False questions

  1. Covalent BondExtremely 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.

          

  2. valence shellAn atoms outermost electron shell.

          

  3. ElementsUnique substances that cannot be broken down into simpler substances by ordinary chemical methods.

          

  4. EnergyThe ability to do work or to put matter into motion.

          

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

          

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