Chemistry

12345678910111213141516171819
Across
  1. 4. the movement of gas molecules from an area of higher concentration to lower concentration
  2. 5. larger gases move_____
  3. 7. _____ can never change at the same time as pressure
  4. 8. smaller gases move_______
  5. 9. Donates one proton per molecule
  6. 13. Citrus juice is a_______
  7. 15. breaking bonds requires______
  8. 16. a substance that speeds up chemical reactions without undergoing any chemical changes
  9. 18. A device used to measure the energy absorbed or released as heat in a chemical reaction
Down
  1. 1. transition directly from a solid to a gas
  2. 2. Donates more than one proton per molecule
  3. 3. if a reaction absorbs energy it is_________
  4. 6. Biological catalysts that speed up the rate of reactions in the body
  5. 10. transition directly from a gas to a solid
  6. 11. Bleach is a_______
  7. 12. the total amount of energy
  8. 14. the change in heat of the products from the reactants
  9. 15. if a reaction releases energy it is__________
  10. 17. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist
  11. 19. diffusion through a tiny opening