unit 4 vocab

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Across
  1. 2. a small sized number on the bottom right of the symbol
  2. 4. a process in which one or more substance are coverted to one or more different substances
  3. 5. a formula giving the proportions of the elements present in a compound
  4. 9. a formula giving the number of atoms of each of the elements present in one molecule
  5. 11. the mass of the system must remain constant over time, the quantity can neither be added nor be removed
  6. 13. artificial execution of chemical reactions to obtain one or several products
  7. 14. an ionic compound
  8. 17. tells you by mass what percent of each element is present in a compound
Down
  1. 1. exchanges the cations of two ionic compounds
  2. 3. a scale used to meaure the acidity or basicity of aques solutions
  3. 6. ratio between the mass and the amount of substance of any sample of said compounds
  4. 7. simplifying a single chemical entity into 2 or more fragments
  5. 8. a chemical reaction in which acids and bases react with an equivalent quantity of eachother
  6. 10. species formed from chemical reactions
  7. 12. gives off hydrogen ions in water and forms salts by combining with different metals
  8. 15. a substance that can accept hydrogen ions in water and can neutralize acids
  9. 16. a chemical reaction that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat or light
  10. 18. a number placed infront of a chemical symbol or formula that shows how many atoms are in the reactant