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Eighth Grade (Grade 8) Chemistry Questions

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Grade 8 Periodic Table and Elements
Grade 8 Acids and Bases
A solution at pH 11.5 is                  .
  1. acidic
  2. basic
  3. neutral
  4. none of the above
Grade 8 Matter
Grade 8 Properties of Matter
Angel's favorite bike begins to rust. The rust is an example of which of the following?
  1. Physical change
  2. Exothermic reaction
  3. Endothermic reaction
  4. Chemical change
Grade 8 Bonds and Mixing
What are the two major categories of matter?
  1. Atoms and molecules
  2. Homogeneous and heterogeneous mixtures
  3. Mixtures and substances
  4. Elements and compounds
Grade 8 Periodic Table and Elements
What is Cu?
  1. Copper
  2. Zinc
Grade 8 Matter
Liquids form into
  1. any shape.
  2. the shape of their container.
  3. no shape.
Grade 8 Properties of Matter
Given the mass and density of an object, which equation should be used to calculate the volume of the object?
  1. [math]"volume"=("mass")/("density")[/math]
  2. [math]"volume" = ("density")/("mass")[/math]
  3. [math]"volume"="mass" + "density"[/math]
  4. [math]"volume"="density" xx "mass"[/math]
Grade 8 Molecules and Compounds
Grade 8 Periodic Table and Elements
Grade 8 Acids and Bases
Grade 8 Reactions
Which of the following is an indicator of a chemical change or reaction?
  1. a solid dissolves
  2. a new substance is formed
  3. water turns to steam
  4. a mixture is made
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