Chemistry Ch. 8 Vocab Crossword

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Across
  1. 2. a reaction in which a compound breaks down(decompose) into two or more simpler compounds or substances
  2. 3. a reaction in which two reactants AB and CD react to form products AD and BC
  3. 6. a reaction in which one element replaces another element in a compound
  4. 7. a reaction in which two or more substances combine to give another substance
  5. 8. a substance produced in the course of a chemical reaction by the transformation of one or more reactants
  6. 13. an insoluble solid that forms in a precipitation reaction when two or more aqueous solutionsare mixed
  7. 15. the reaction between an H3O+ ion supplied by an acid and an OH- ion supplied by a base. A hydronium ion and a hydroxide ion react with each other to give two molecules of water
  8. 17. a substance that increases the concentration of H+ ions in an aqueous solution
  9. 18. a notation for showing what takes place in a chemical reaction. Th chemical formulas of all reactants are written on the left side of the arrow, and thee chemical formulas of the products are written on the right side
  10. 20. a chemical reaction in which all reactants are gases
Down
  1. 1. an equation that shows all the ions, bth those that take part in the reaction and the spectator ions
  2. 4. a reaction in which an insoluble solid (the precipitate) forms when two or more aqueous solutions are mixed
  3. 5. the process by which either the molecules of a covalent compound or the cations and anions bound in the lattice of an ionic compound break up into individual cations and anions
  4. 9. a process in which two or more reactants are transformed into one or more products through the breaking of chemical bonds in the reactant mmolecules and the formation of new cemical bonds in the product molecules
  5. 10. an ion present in the vessel in which a chemical reaction takes place that does not take part in the reaction
  6. 11. a starting material for a chemical reaction; a substance that enters into the reaction and is tranformed into one or more product substances
  7. 12. a substance that increases the concentration of OH- ions in an aqueous solution
  8. 14. the reaction of any substance with oxygen (O2)
  9. 16. an equation that shows the reactants and products of the reaction, but not the spectator ions
  10. 19. the work of planning, performing, and perfecting the preparation of a chemical compound