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1. The Chemical World10m
- The Scientific Method
  10m
2. Measurement and Problem Solving2h 25m
3. Matter and Energy2h 15m
4. Atoms and Elements2h 33m
5. Molecules and Compounds1h 50m
6. Chemical Composition1h 23m
7. Chemical Reactions1h 43m
8. Quantities in Chemical Reactions1h 16m
9. Electrons in Atoms and the Periodic Table2h 32m
10. Chemical Bonding2h 10m
11 Gases2h 15m
12. Liquids, Solids, and Intermolecular Forces1h 11m
13. Solutions3h 1m
14. Acids and Bases2h 14m
15. Chemical Equilibrium1h 27m
16. Oxidation and Reduction1h 33m
17. Radioactivity and Nuclear Chemistry53m

7. Chemical Reactions

Balancing Chemical Equations (Simplified)

Introduction to Chemistry7. Chemical ReactionsBalancing Chemical Equations (Simplified)

2:39 minutes

Problem 23

Textbook Question

Textbook Question

Why is it not possible to balance an equation by changing the subscript on a substance, say from H₂O to H₂O₂?

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