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Eighth Grade (Grade 8) Reactions Questions

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Grade 8 Reactions
Define Chemical Energy.
Grade 8 Reactions
Which of the following is an example of a chemical reaction?
  1. salt crystals forming as sea water evaporates
  2. ice melting in a glass of water
  3. paper turning soft when wet
  4. leaves changing colors in the fall
Grade 8 Reactions
Alkali metals do not react with water.
  1. True
  2. False
Grade 8 Reactions
What is formed when an acid reacts with an alkali?
  1. Salt + hydrogen
  2. Salt only
  3. Salt + water
  4. Sodium hydroxide
Grade 8 Reactions
Define activation energy?
Grade 8 Reactions
How do firecrackers work?
Grade 8 Reactions
Define an inhibitor.
Grade 8 Reactions
How do firecrackers work?
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