Chemical Reactions Vocabulary Test

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Across
  1. 1. A substance with a high quantity of H+ ions that tastes sour, reacts with metals and carbonates, turns blue litmus paper red
  2. 4. A chemical change in which a substance combines with oxygen, as when iron oxidizes forming rust
  3. 7. The process in which substances undergo chemical changes that result in the formation of new substances
  4. 8. The measurement of how acidic or basic a substance is on a scale of 0 (very acidic) to 14 (very basic)
  5. 9. A reaction that releases energy in the form of heat (ex. Burning)
  6. 10. A substance with a high quantity of OH- ions that tastes bitter, feels slippery, and turns red litmus paper blue
  7. 12. A chemical reaction that breaks down compounds into simpler products
  8. 13. A substance that enters into a chemical reaction
  9. 14. A system in which not matter is allowed to enter or leave
  10. 15. A solid that forms from a solution during a chemical reaction
  11. 17. The minimum amount of energy needed to get a chemical reaction started
  12. 18. The principle stating that matter is not created or destroyed during a chemical reaction
Down
  1. 2. The study of the properties of matter and how matter changes
  2. 3. A substance formed as a result of a chemical reaction
  3. 5. A material that decreased the rate of a reaction
  4. 6. A reaction that absorbs energy in the form of heat (ex. Baking soda and vinegar)
  5. 11. A reaction in which one element replaces another in a compound or when two elements in different compounds trade places
  6. 16. A system in which mater can enter from or escape to the surroundings
  7. 18. A material that increases the rate of a reaction by lowering the activation energy
  8. 19. A biological catalyst that lowers the activation energy of reactions in cells
  9. 20. A chemical reaction in which two or more simple substances combine to form a new, more complex substance