Conservation of mass and balanced chemical equations
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Atoms are rearranged, not created

Atoms are rearranged, not created

Particle diagram showing two hydrogen molecules and one oxygen molecule reacting to make two water molecules, with atom totals H=4 and O=2 on both sides

In the diagram, 2 hydrogen molecules and 1 oxygen molecule become 2 water molecules. The atom totals stay the same before and after the reaction.

Conservation of mass and balanced chemical equations Lesson

  1. GCSE
  2. /Chemistry
  3. /Conservation of mass and balanced chemical equations