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  1. Nitric acid - Wikipedia

  2. Nitric acid | Properties, Formula, Uses, & Facts | Britannica

  3. Nitric Acid | HNO3 | CID 944 - PubChem

  4. HNO3 (Nitric Acid) - Formula, Properties, Uses, & Facts with ...

  5. Nitric Acid | NIOSH | CDC - Centers for Disease Control and ...

  6. Nitric Acid (HNO3): Properties, Reactions, Applications

  7. Nitric acid - Simple English Wikipedia, the free encyclopedia