Across
- 3. number of atoms, ions, or molecules in one mole of a approximately 6.022 x 10^23
- 5. reaction where a substance reacts with oxygen, producing heat and light
- 6. formed from a solution during a chemical reaction
- 9. reaction reaction where ions of two compounds exchange places
- 11. reaction where substances combine to form a new compound
- 14. intially present in a chemical reaction
- 16. containing water molecules bound to its ions
- 18. ratio of the coefficients in a balanced chemical equation, representing the relative amounts of substances involved
- 19. representation of a chemical reaction using symbols and formulas
- 20. matter cannot be created or destroyed in a chemical reaction
Down
- 1. simplest whole number ratio of atoms in a compound
- 2. formed as a result of a chemical reaction
- 4. reaction reaction where one element replaces another in a compound
- 7. unit of measurement for the amount of a substance
- 8. reaction where a compound breaks down into simpler substances
- 10. placed in front of a chemical formula in a balanced equation, indicating the relative amounts of reactants and products
- 12. Process where substances transform into different ones
- 13. percentage by mass of each element in a compound
- 15. formula showing the actual number of atoms of each element in a molecule
- 17. mass of one mole of a substance