Elements, Compounds and Mixtures LSS

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Across
  1. 3. the elements present in magnesium oxide are magnesium and ___
  2. 5. ____ substances dissolve to different extents in the same solvent
  3. 6. metals are ___ which means they can be hammered into thin sheets
  4. 7. metals have high ____ e.g. lead is used to make fishing weights
  5. 8. the ____ of a solute refers to the maximum mass of solute that can dissolve in a given volume of solvent at a given temperature
  6. 11. sodium chloride is a compound made up of two elements, sodium and ___
  7. 14. ___ are stronger and harder than pure metals
  8. 16. a solution that contains the maximum mass of dissolved solute in a fixed volume of solvent at a fixed temperature
  9. 17. a pure substance that cannot be broken down into two or more simpler substances by chemical methods
  10. 18. calcium nitrate is made up of calcium, oxygen and ___
  11. 20. elements in the same group have ___ chemical properties hence undergo similar chemical reactions
  12. 21. solubility of substances generally ____ with temperature_drop_
  13. 24. ___ or light is involved in the formation of a compound
  14. 26. a compound has properties ___ from those of its constituent elements
  15. 27. metals are ___ which means they can be pulled into long, thin wires
  16. 29. solid non-metals are ___ and break easily when a force is applied
  17. 32. a solution that contains a small mass of solute in a large volume of solvent
  18. 33. the only liquid metal at room temperature
  19. 36. a solution formed when water is the solvent used to make the solution
  20. 37. seawater is a mixture made up mainly of ___, sodium chloride and dissolved gases
  21. 38. a metal that is used to make cooking pots and foil to wrap food
  22. 39. a mixture that is made up of a metal and other metals or non-metals
  23. 41. element in Group 4 and Period 2 of the Periodic Table
  24. 42. a mixture in which small particles present in a liquid prevent light from passing through easily
  25. 45. a mixture ___ the properties of its constituents
  26. 46. a black non-metal that conducts electricity
  27. 47. elements can be classified into ____ and non-metals
  28. 48. iron and sulfur when heated together in the correct compositions by mass forms iron(II) ____
Down
  1. 1. a solution that contains a large mass of solute in a given volume of solvent
  2. 2. non-metals are ____ conductors of heat and electricity
  3. 4. sodium chloride can be obtained from seawater by a physical method of separation called ___
  4. 9. the only liquid non-metallic element at room temperature
  5. 10. potassium chloride can be separated into potassium and chlorine by ___ methods e.g. electrolysis
  6. 12. the Periodic Table comprises metallic and non-metallic ___
  7. 13. a substance that contains elements and/or compounds physically mixed together in variable proportions
  8. 15. a yellow non-metal
  9. 19. a compound containing hydrogen particles and oxygen particles present in the ratio of 2:1
  10. 20. steel is used to make utensils and surgical instruments
  11. 22. the ___ of dissolving measures how fast a solute dissolves in a solvent
  12. 23. element in Group 1 and Period 3 of the Periodic Table
  13. 25. metals have ___ melting and boiling points
  14. 28. a pure substance that is made up of two or more elements chemically combined in a fixed composition by mass
  15. 30. metals are usually shiny and ____
  16. 31. elements in the Periodic Table are arranged in order of increasing ___ numbers
  17. 34. a horizontal row in the Periodic Table
  18. 35. a solution can be coloured but is ______ i.e clear
  19. 40. a vertical column in the Periodic Table
  20. 43. a mixture made up of 78% nitrogen, 21% oxygen, carbon dioxide, noble gases and variable amounts of water vapour
  21. 44. a metal that is used to make electrical wiring
  22. 47. ___ steel is used to make car bodies and girders for bridges