CHEMISTRY

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Across
  1. 2. A reaction that absorbs heat
  2. 5. A process where plants convert light energy into chemical energy
  3. 7. The substance that dissolves another substance in a solution
  4. 8. A reaction that releases heat
  5. 9. To become dispersed throughout a solvent
  6. 13. A chemical equation where the number of atoms of each element is the same on both sides
  7. 15. A change in which substances are transformed into new substances
  8. 16. A homogenous mixture where one substance is dissolved in another
  9. 17. A chemical process involving rapid oxidation, often with fire
  10. 18. A reaction where one element replaces another in a compound
  11. 19. The substance formed after a chemical reaction
  12. 20. The starting substances in a chemical reaction
Down
  1. 1. A substance that speeds up a chemical reaction
  2. 3. The process where an element loses electrons
  3. 4. DISPLACEMENT A reaction where two compounds exchange ions
  4. 6. A slow chemical process that eats away metal surfaces
  5. 10. A representation of a chemical reaction using symbols and formulas
  6. 11. A form of energy often involved in chemical reactions
  7. 12. The process where an element gains electrons
  8. 14. A solid that forms from a solution during a chemical reaction