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Eighth Grade (Grade 8) Chemistry Questions

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Grade 8 Properties of Matter
Grade 8 Reactions
What law says that nothing can be created or destroyed in a reaction?
  1. The Law of Physics
  2. The Law of Conservation and Mass
  3. The Law of Chemistry
  4. The Law of Conserving Chemical Reactions
Grade 8 Periodic Table and Elements
The number of protons in an atom is equal to the
  1. group number.
  2. period number.
  3. number of neutrons.
  4. atomic number.
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 8 Properties of Matter

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Grade 8 Periodic Table and Elements
Grade 8 Properties of Matter
Grade 8 Properties of Matter
The density of a cube with 1000 g mass and 20 [math]cm^3[/math] is                         .
  1. [math]10 g//cm^3[/math]
  2. [math]50 g//cm^3[/math]
  3. [math]500 g//cm^3[/math]
  4. [math]21 g//cm^3[/math]
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