Chemistry Standard Grade Revision cards

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  1. Additon Reaction
    A double bond Breaks and something else is added on.
  2. Condensation
    When a molecule looses water to join together. Eg Glucose
  3. Hydrolysis
    Using water to break a molecule down. Going from larger molecules to smaller molecules, Eg Hydrolysed starch molecules are smaller than ordinary starch molecules.
  4. Displacement
    When a more reactive metal displaces a less reactive metal out of a solution of its own ions.
  5. Redox Reaction
    A combination of an oxidation and reduction reaction.
  6. Oxidation
    When a metal looses electrons.
  7. Reduction
    When a metal gains electrons.
  8. Precipitation
    When two liquids combine together to form a solid in a liquid. The solid can then be filtered from the liquid by filtration.
  9. Electrolysis
    The splitting of an ionic compound which is molten or aqueous by using electricity.
  10. Fermentation
    Glusocse and oxygen react together with yeast to form carbon dioxide, water and ethanol.
  11. Distillation
    When an alcohol is distilled to increase the alcohol concentration.

    Seperating liquids by boiling points.
  12. Photosynthesis
    When a plant makes its own food.

    6CO2 + 6H2O ---> C6H12O6 + 6O2
  13. Respiration
    How an animal releases energy from food.

    C6H12O6 + 6O2 ------> 6CO2 + 6H2O
  14. Neutralisation
    Forming a neutral product by:

    Adding an acid and an alkali together to make to neutral product.

    A neutral solution is added to an acid or an alkali to make the pH closer to 7.
  15. Combustion
    When fuel and oxygen combine together to form carbon dioxide water and energy.
  16. Corrosion
    The oxidation of a metal.
  17. Hydrocarbon
    A covalent molecule made up of Carbon and Hydrogen.
  18. Homologus Series
    A family or hydrocarbons with the same general formula and similar chemical properties.
  19. Isomers
    Hydrocarbons with the same molecular formula, but different structural formula. Eg butene and cyclobutane.
  20. Isotopes
    Elements with the same atomic number, but different mass number.
  21. Covalent Bonding
    Between two or more metals or non metals to achieve a stable outer electron shell.

    They do this due to a common attraction for the positively charged nucleus.
  22. Ionic Bonding
    Bonding between a metal and a non metal.

    They combine due to sharing pairs of electrons.

    They can conduct electricity when molten or aqueous
  23. Metallic Bonding
    The bonding between two or more metals. They have high melting and boiling points and can conduct electricity in any state.
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Chemistry Standard Grade Revision cards
2012-05-03 09:00:34
Chemistry Standard Grade SQA definitions

A rundown of all the descriptions and terms needed for Standard Grade Chemistry.
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