Chapter13 Zachary Ruch

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Across
  1. 3. A reaction in which two or more substances combine to form a new compound.
  2. 5. A substance that accepts hydrogens ions.
  3. 7. A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light.
  4. 11. Change that takes place when two or more substances (reactants) interact to form new substances (products).
  5. 12. A reaction that ABSORBS energy in the form of heat.
  6. 14. A reaction in which a single compound breaks down to form to or more simpler substance.
  7. 15. When reaction and its reverse act at the same rate.
Down
  1. 1. A reaction in which atoms of one element take the place of atoms of another element in a compound.
  2. 2. A chemical substance that is present at the start of a chemical reaction.
  3. 4. Raction when two elements or ions move out of one compound and into another-that is, two elements replace one element in two separate compounds.
  4. 6. The minimum energy required in order for a chemical reaction to proceed.
  5. 8. A reaction that releases energy in the form of heat.
  6. 9. A substance produced in a chemical reaction.
  7. 10. chemical agents that selectively speed up chemical reaction without being consumed by the reaction.
  8. 13. Descripition of a substance that can behave as either an acid or a base.