Across
- 2. Substance that donates protons in a chemical reaction
- 4. A reaction where substances combine with oxygen and release energy
- 6. a term used in fiction, engineering, and common situations for a material ideal for a particular application but impractically difficult or impossible to obtain
- 7. Transition metal with symbol "Pt", used in catalytic converters
Down
- 1. A substance that speeds up a chemical reaction without being consumed
- 3. Halogen with atomic number 17, commonly used in disinfectants
- 5. Synthetic element with atomic number 101, named after a famous chemist
- 8. Radioactive element used in nuclear fuel with atomic number 92