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5 Written questions

5 Matching questions

  1. law of conservation of mass
  2. solid
  3. atoms
  4. mixtures
  5. chemical change
  1. a a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
  2. b the smallest unit of matter that has the characteristics of an element; consists of three main types of subatomic particles: protons neutrons and electrons.
  3. c made of two or more substances (elements, compounds, or both) that are combined
  4. d a change that produces matter with a different composition than the original matter
  5. e of definite shape and volume

5 Multiple choice questions

  1. on the right
  2. any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
  3. that which has mass and occupies space.(everything in the world has this)
  4. on the left
  5. substances formed by the joining of elements through chemical bonding. every molecule of a compound is the same.

5 True/False questions

  1. massthe state of matter distinguished from the solid and liquid states by: relatively low density and viscosity

          

  2. baseany of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water

          

  3. elementson the left

          

  4. gasthe state of matter distinguished from the solid and liquid states by: relatively low density and viscosity

          

  5. volumeof definite shape and volume

          

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