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  1. Ammonia | Definition, Formula, Structure - Lesson | Study.com

  2. Ammonium | Formula, Symbol & Structure - Lesson - Study.com

  3. Ammonia | Definition, Formula, Structure - Video | Study.com

  4. Ammonia Synthesis | Overview, Process & Reaction - Study.com

  5. Ammonium Hydroxide | Formula, Structure & Uses - Study.com

  6. Ammonium Nitrate | Formula, Reactions & Uses - Study.com

  7. Ammonia, Water & Hydrogen Sulfide | Properties & Comparison

  8. Anhydrous Ammonia | Uses, Storage & Substitutes - Study.com

  9. Nitrification | Definition, Process & Cycle - Lesson - Study.com

  10. Urea | Structure, Formula & Uses - Lesson - Study.com