1. Please identify each of the following as an atom, an element, an ion, a molecule, or a compound:
- A. H2O
- B. NH4+
- C. NH3
- D. H2
- E. C6H12O6
- A. H3O+
- B. F–
- C. Na
- D. Ar
- E. O22–
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A: molecule, compound; B: ion; C: molecule, compound; D: molecule; E: molecule, compound; F: ion; G: ion; H: element; I: element; J: ion