Across
- 6. For a first order reaction this constant has the units of reciprocal time
- 9. Atoms with the same number of protons but different mass numbers
- 10. particles posses this kind of energy
Down
- 1. The particles must have this energy to react
- 2. These help reactions go faster
- 3. Atom of mass of 55 and atomic number 25 has how many neutrons?
- 4. Different forms of the same element
- 5. A biological catalyst
- 7. Green gas with seven outer electrons
- 8. Sound that describes the reaction of H2 near a lit splint