Across
- 2. when balancing chemical equations, the formula that comes before the arrow
- 6. a particle with a negative electric charge
- 8. when balancing equations, the formula that comes after the arrow
- 11. a more exact amount of how many atoms of each element in a molecule
- 13. the base unit of amount of substance
- 14. a positively charged ion
- 16. a mathematical function describing the location and wave-like behavior of an electron in an atom
- 17. the first reactant that is used up in a reaction
- 19. an atom or molecule with a net electrical charge
- 20. a particle with a positive electric charge
Down
- 1. a reaction or process that releases energy/heat
- 3. the basic ratio of a formula of an molecule
- 4. a substance that speeds up a chemical reaction
- 5. a measure of how badly an atom wants electrons
- 7. the theory that nothing can be created or destroyed only changed
- 9. a particle with a neuton charge/no electric charge
- 10. an electron in the outer shell associated with an atom
- 12. what is leftover after the reaction stops
- 15. a negatively charged ion
- 18. a reaction or process that absorbs energy/heat