Chemical properties

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5 Terms

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What are the properties of ionic compounds?

  • high melting and boiling points- lots of energy is needed

  • cannot conduct electricity when solid- charges cannot flow as ions are in a fixed place

  • can conduct electricity when liquid- melted, dissolved in water- ions in the lattice are free to move- charge can flow

2
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What are intramolecular bonds?

  • strong covalent bonds found within small molecules

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What are intermolecular bonds?

  • weak forces found between small molecules

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What are polymers?

  • large, chain- like molecules held together by

  • strong covalent bonds between atoms in molecules

  • weak intermolecular forces between molecules

  • often solid at room temp

  • many melt easily

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What are the properties of pure metals?

  • high melting and boiling points- strong electrostatic forces between metal ions and delocalised electrons

  • soft and malleable- ions are arranged in layers and slide over each other easily when a force is applied