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Type: Multiple-Choice
Category: Macromolecules
Level: Grade 9
Score: 2
Author: JVance
Created: 11 months ago

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Macromolecules Question

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Grade 9 Macromolecules

The energy needed to start a chemical reaction is called the                  .
  1. reaction energy
  2. activation energy
  3. heat energy
  4. lightning
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