Chemistry G123

12345678910111213141516171819202122232425262728293031323334353637383940
Across
  1. 3. mixture containing small particles of an insoluble solid
  2. 6. characteristic of metals when it can be drawn into rods and sheets
  3. 10. the smallest particle of an element that can take part in a chemical reaction
  4. 11. Electrons that are not confined to any place
  5. 16. a process occurring at the surface of a liquid, involving the change of state from a liquid into a vapour at a temperature below the boiling point
  6. 19. a substance that neutralises an acid, producing a salt and water as the only products.
  7. 20. the temperature at which a liquid turns into a solid
  8. 21. Group 7 of the periodic table
  9. 24. Type of bond where the electron gets transferred
  10. 26. a measure of how much of a solute dissolves in a solvent
  11. 27. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
  12. 29. number the total number of of protons and neutrons in the nucleus of an atom
  13. 30. the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
  14. 32. accompanied by or requiring the absorption of heat.
  15. 35. when mass is divided by formula mass
  16. 38. a substance which changes colour when added to acidic or alkaline solutions
  17. 39. ....'s constant
  18. 40. the process of boiling a liquid and then condensing the vapour produced back into a liquid
Down
  1. 1. the electrode in any type of cell at which reduction (the gain of electrons) takes place; in electrolysis it is the negative electrode
  2. 2. the process when different fluids mix as a result of the random motions of particles
  3. 4. Group 1 of the periodic table
  4. 5. characteristic of metals when it can be hammered into sheets
  5. 7. charged particles made from an atom, or groups of atoms
  6. 8. a substance that cant be further divided into simpler substances by chemicals
  7. 9. the temperature at which a liquid boils, when the pressure of the gas created above the liquid equals atmospheric pressure
  8. 12. shells the outside part of an atom around the atomic nucleus
  9. 13. the central region of an atom that is made up of the protons and neutrons of the atom
  10. 14. Type of bond that has a shared pair of electrons
  11. 15. a substance formed by the chemical combination of two or more elements
  12. 16. example of a catalyst
  13. 17. A substance that does not conduct electricity
  14. 18. if two liquids form a completely uniform mixture when added together
  15. 22. number the number of the vertical column that an element is in on the Periodic table
  16. 23. atoms of the same element that have the same proton number but a different nucleon number
  17. 25. two substances mixed together but not chemically combined
  18. 28. accompanied by the release of heat.
  19. 30. the change of a vapour or a gas into a liquid; during this process heat is given out to the surroundings
  20. 31. a state in which the rate of the forward reaction equals the rate of the backward reaction.
  21. 33. passing an electric current through ionic substances
  22. 34. The mass, in grams, of 1 mole of a substance
  23. 36. speeds up a reaction
  24. 37. Group8 of the periodic table