Chapter 7 Vocabulary

123456789101112131415
Across
  1. 2. a reaction in which a compound breaks down into two or more simpler substances
  2. 7. a reaction in which one element replaces a similar element in a compound
  3. 8. a chemical reaction that releases energy by light or heat
  4. 13. species formed from chemical reactions
  5. 14. symbolic representation of a chemical reaction in the form of symbols
  6. 15. 6.02214076 × 1023 of some chemical unit
Down
  1. 1. a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat
  2. 3. reactions that involve the transfer of electrons from one species to another
  3. 4. a chemical process in which two or more simple elements or compounds combine to form a more complex product
  4. 5. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
  5. 6. any chemical reaction that absorbs heat from its environment
  6. 9. substance that undergoes a change during a reaction
  7. 10. energy stored in the bonds of chemical compounds, like atoms and molecules
  8. 11. the mass of one mole of any substance
  9. 12. a factor that is multiplied by a variable or another quantity in an equation or formula