Topic 8 - Acids and Alkalis

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Anonymous
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73828
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Topic 8 - Acids and Alkalis
Updated:
2011-03-19 09:59:23
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Chemistry Acids Alkalis
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Standard Grade Chemistry - Topic 8 - Acids and Alkalis
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  1. Elements burn in oxygen to form what?
    Oxides
  2. When a non-metal oxide dissolves in water an _______ solution is formed?
    acidic
  3. When a metal oxide dissolves in water an _______ solution is formed?
    alkaline
  4. What compound is formed when compounds containing the element sulphur are burned?
    sulphur dioxide
  5. Sulphur dioxide is one of the main causes of....?
    acid rain
  6. What can acid rain destroy?
    • Buildings made of limestone
    • Iron (steel) structures eg bridges
  7. Acids have a ph of....?
    less than 7
  8. Alkalis have a ph of....?
    more than 7
  9. Neutral solutions have a ph of....?
    7
  10. All acidic solutions produce _______ gas at the negative electrode when the acid is electrolysed?
    hydrogen
  11. What ion is present in all acidic solutions?
    Hydrogen - H+
  12. What ion is present in all alkali solutions?
    Hydroxide - OH-
  13. What is the formula for hydrochloric acid?
    HCl
  14. What is the formula for sulphuric acid?
    H2 SO4
  15. What is the formula for nitric acid?
    HNO3
  16. What is the formula for sodium hydroxide?
    NaOH
  17. What is the test for hydrogen gas?
    It burns with a pop
  18. What is the product when pure hydrogen is burned?
    Water
  19. In an acidic solution the number of hydrogen ions is _______ than the number of hydroxide ions?
    greater
  20. In an alkali solution the number of hydorxide ions is _____ than the number of hydrogen ions?
    greater
  21. In a neutral solution there are _____ numbers of hydrogen and hydroxide ions?
    equal
  22. What happens to the concentration of acidic and alkali solutions when they are diluted with water?
    The concentration moves towards 7
  23. When a metal oxide or a metal hydroxide dissolves in water what kind of solution is formed?
    An alkaline solution

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