CHEMICAL EQUATIONS

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Across
  1. 2. Reaction that absorbs heat from surroundings
  2. 5. A more reactive element replaces a less reactive one
  3. 9. A process in which new substances are formed
  4. 10. A symbolic representation of a chemical reaction
  5. 12. A group of atoms bonded together
  6. 13. Evidence of reaction when bubbles or fumes are produced
  7. 14. An insoluble solid formed in a reaction between solutions
  8. 15. One substance breaking into two or more simpler ones
Down
  1. 1. Type of chemical bond between a metallic element and a nonmetallic one
  2. 3. Two or more substances forming one product
  3. 4. Substances formed after a chemical reaction
  4. 6. Making sure atoms are equal on both sides of an equation
  5. 7. Evidence of reaction related to light
  6. 8. Reaction that releases heat or light energy
  7. 9. Substances present before a chemical change
  8. 11. Gradual damage of metals by air, moisture, or chemicals