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1. why can ionic compounds conduct electricity when dissolved in water but not when they're solid?

  • when dissolved ions can separate and can move freely meaning they are able to carry an electric current
  • dunno
  • there are gaps for the current to flow through
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2. why do solid ionic compounds form crystals?

  • idk
  • ionic bonds create one giant ionic lattice which is a single crystal of salt
  • the forces of attraction between the ions are very strong

3. name a gas in dry air that is a ompund

  • argon
  • oxygen
  • carbon dioxide
  • nitrogen

4. what is covalent bonding

  • atoms vibrating together
  • idk
  • sharing electrons due to electrostatic attraction between the positive nuclei and the negative electrons
  • giving up or gaining an electron

5. what is the earths hydrosphere?

  • the oceans
  • land
  • air

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