Across
- 1. Two or more atoms bonded together
- 4. A substance made of only one type of atom
- 5. A substance with a pH of 8-14
- 7. Two or more atoms or compounds, not bonded together
Down
- 2. A substance made of only one atom or compound
- 3. A substance with a pH of 7
- 6. A substance with a pH of 1-6