Energy

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Across
  1. 2. an alcohol that is also used as a fuel
  2. 4. this gas burns and it has a molar mass of 16 g
  3. 7. this part of a reaction is always an endothermic process
  4. 10. a non-polar gas
  5. 12. type of bond between molecules
  6. 13. we describe a molecular as this if the dipoles cancel out
  7. 14. this molecule has a molar mass of 28g
  8. 16. a type of bonding between metals
  9. 17. type of bonding between metal and non-metals
  10. 18. a molecule is this shape if it has 4 bonding pairs around a central atom
  11. 20. in a lewis diagram the outer atoms have this number of electrons in their outer shells
  12. 21. type of reaction that absorbs heat
  13. 22. this part of a reaction is always exothermic
  14. 23. these have more energy in them in an endothermic reaction
Down
  1. 1. a polar molecule that has a molar mass of 17g
  2. 2. a small group of non-metals
  3. 3. the shape of a molecule that only has two bonding pairs
  4. 5. a polar linear molecule with a molar mass of 36.5g
  5. 6. the shape of a molecule that has three bonding pairs only
  6. 7. a hydrocarbon with 4 carbons which is used in camping stoves
  7. 8. a type of bonding between non-metals
  8. 9. the most electronegative element
  9. 11. means something can dissolve
  10. 15. an electronegative element
  11. 19. type of reaction that gives out heat