Chapter Review 9-11

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Across
  1. 5. equation that does not indicate the relative amounts of the reactants and products
  2. 6. 22.4 L
  3. 10. CN-
  4. 13. compound that contains one or more hydrogen atoms and produces hydrogen ions when dissolved in water
  5. 14. relative amounts of the elements in a compound are expressed as __ composition
  6. 16. chemical change in which one element replaces a second element in a compound
  7. 17. chemical change in which a single compound breaks down into two or more simpler products
  8. 21. species present in a substance, usually atoms, molecules, or formula units
  9. 22. atomic mass of an element expressed in grams
  10. 24. chemical change in which an element or compound reacts with oxygen, producing energy in the form of heat and light
  11. 25. temperature of 0C and a pressure of 101.3kPa
  12. 26. ion that is composed of more than one atom and behaves as unit and carries a charge
  13. 27. small whole numbers that are placed in front of the formulas in an equation in order to balance it
Down
  1. 1. If the metallic element in a binary ionic compound has more than one common ionic charge, a ___ numeral must be included in the cation name
  2. 2. lists in metals in order of decreasing reactivity
  3. 3. equation in which each side of the equation has the sane number of atoms of each element and mass is conserved
  4. 4. chemical change in which two or more substances react to form a single new substance
  5. 7. consist of single atom with a positive or negative charge resulting from the loss or gain of one or more valence electrons
  6. 8. chemical change involving an exchange of positive ions between two compounds
  7. 9. ionic compound that produces hydroxide ions when dissolved in water
  8. 11. SI unit for measuring he amount of substance
  9. 12. The charges of the cations of many transition metal ions must be determined from the number of ___ lost
  10. 15. substance that speeds up the reaction but is not used up in the reaction
  11. 18. representation of a chemical reaction
  12. 19. number of representative particles in a mole
  13. 20. composed of two elements
  14. 23. formula of a compound that gives the lowest whole-number ratio of the atoms or moles of the elements in a compound