Chemistry Grade 9

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Chemistry Grade 9
2013-05-11 13:26:13

Properties of Elements and Compounds
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  1. Matter
    Anything that had a mass and occupies space.
  2. Pure Substance
    Matter that contains only one kind of particle. Element or Compound
  3. Mixture
    Matter that contains more than one kind of particle. Heterogeneous (mechanical mixture) or homogeneous (solution)
  4. Element
    A pure substance that cannot be broken down into simpler parts by chemical methods.
  5. Compound
    A pure substance made of two or more different elements that are chemically combined.
  6. HHPS
    Hazardous Household Products System
  7. WHMIS
    Workplace Hazardous Materials Information System
  8. Physical Property
    A characteristic of a substance that can be observed and measured without changing the identity of the substance.
  9. Viscosity
    The measure of a substance's resistance to flow.
  10. Melting Point
    The temperature at which a solid turns into a liquid.
  11. Boiling Point
    The temperature at which a liquid turns to a gas.
  12. Solubility
    A measure of the ability of a substance to dissolve in another substance. 
  13. Density
    The ratio of the mass of a substance to the volume it occupies.
  14. Chemical Property
    The ability of a substance to change (react) and form new substances. 
  15. Combustibility
    The ability of a substance to burn in air.
  16. Stability
    The ability of a substance to remain unchanged. 
  17. Toxicity
    The ability of a substance to cause harmful effects in plants and animals.   (LD50)