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Type: Multiple-Choice
Category: Reactions
Level: Grade 8
Score: 1
Author: JEThompson
Created: 11 years ago

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Grade 8 Reactions

What is the principle of conservation of mass?
  1. The total mass must change for a chemical reaction to occur.
  2. The total mass of the reactants must be greater than the total mass of the products.
  3. The total mass of the products must be greater than the total mass of the reactants.
  4. The total mass of the reactants must equal the total mass of the products.