How will they most likely test you in the exam on identifying the structure of a substance?
By describing the physical properties of a substance and asking you to decide which type of bonding it has and therefore what type of material it is.
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(Table on Page 55). Give examples of substances using table.(1)
Sodium chloride, magnesium sulfate and copper sulfate all conduct electricity when dissolved, but not when solid. So, they must be ionic lattices.
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(Table on Page 55). Give examples of substances using table.(2)
Hexane and liquid paraffin don't conduct electricity at all and have low melting and boiling points. So, they must be simple molecular covalent substances.
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(Table on Page 55). Give examples of substances using table.(3)
Silicon (IV) oxide doesn't conduct electricity and has high melting and boiling points, so it must be a giant molecular covalent substance.
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(Table on Page 55). Give examples of substances using table.(4)
Sucrose doesn't conduct electricity even in solution so it can't be an ionic lattice. It has a low melting point and is soluble in water, so it must be a simple molecular covalent substance.
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Other cards in this set
Card 2
Front
How will they most likely test you in the exam on identifying the structure of a substance?
Back
By describing the physical properties of a substance and asking you to decide which type of bonding it has and therefore what type of material it is.
Card 3
Front
(Table on Page 55). Give examples of substances using table.(1)
Back
Card 4
Front
(Table on Page 55). Give examples of substances using table.(2)
Back
Card 5
Front
(Table on Page 55). Give examples of substances using table.(3)
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