Dr K's AS Unit 2 revision keyword crossword

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Across
  1. 2. The reagent in a chemical reaction that is used up first is called the _____ reagent
  2. 3. Enthalpy change takes in from surroundings. When enthalpy of products > enthalpy of products
  3. 6. The minimum energy required to break the bonds of reactants
  4. 8. ____ fission is bond breaking where both electrons in the bond go to one atom forming ions
  5. 9. Removal of a molecule from a saturated molecule to form an unsaturated molecule
  6. 10. A reaction where an atom or group is replaced with another atom or group in a molecule
  7. 16. Organic compound with single bonds only
  8. 17. Series having the same functional group and general formula
  9. 19. ____ isomers have the same structural formula, different spatial arrangement of atoms
  10. 20. Long chain molecules made up of monomers
Down
  1. 1. A species with an unpaired electron is called a
  2. 2. The principle that states a system in equilibrium will shift the position of its equilibrium to minimise any change
  3. 4. Accepts a pair of electrons from electron rich centre to form a covalent bond
  4. 5. Increases the rate of a reaction by providing a route with lower Ea and comes out unchanged
  5. 7. ____ fission is bond breaking where one electron from the bond goes to each atom forming radicals
  6. 11. ___ isomer have the same molecular formula, different arrangement of atoms
  7. 12. Donates a pair of electrons to a delta+ carbon forming a covalent bond
  8. 13. Enthalpy change giving heat to the surroundings. When enthalpy of reactants > enthalpy of products
  9. 14. How easy a liquid turns to a gas
  10. 15. Heat content stored in a chemical system
  11. 18. Formula that shows only the carbon skeleton with the Hydrogens removed