Chemistry - Properties of Bonding types

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Last updated 9:33 AM on 6/22/26
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32 Terms

1
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What are the melting and boiling points of metallic substances?
Varies (ranges from low to very high).
2
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Are metallic substances volatile?
No – low volatility.
3
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Are metallic substances soluble in water?
No – insoluble.
4
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Do metallic substances conduct electricity?
Yes – in solid and liquid states.
5
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Do metallic substances conduct heat?
Yes – good thermal conductors.
6
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Are metallic substances brittle?
No – they are malleable and ductile.
7
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Are metallic substances susceptible to corrosion?
Yes (e.g., rusting, tarnishing).
8
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What are the melting and boiling points of ionic substances?
High (due to strong electrostatic forces).
9
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Are ionic substances volatile?
No – low volatility.
10
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Are ionic substances soluble in water?
Varies – many are soluble, some are not.
11
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Do ionic substances conduct electricity?
No when solid. Yes when molten (liquid) or in aqueous solution.
12
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Do ionic substances conduct heat?
No – poor thermal conductors.
13
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Are ionic substances brittle?
Yes – they shatter under stress.
14
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Are ionic substances susceptible to corrosion?
Varies – some react with moisture/air, others are stable.
15
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What are the melting and boiling points of molecular covalent substances?
Low (weak intermolecular forces).
16
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Are molecular covalent substances volatile?
Yes – high volatility (evaporate easily).
17
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Are molecular covalent substances soluble in water?
Varies – some are soluble (e.g., sugar), others are not (e.g., oils).
18
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Do molecular covalent substances conduct electricity?
No – no free ions or electrons.
19
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Do molecular covalent substances conduct heat?
No – poor thermal conductors.
20
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Are molecular covalent substances brittle?
No – except for some polymers (which can be flexible/tough).
21
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Are molecular covalent substances susceptible to corrosion?
Varies – some react (e.g., oxidise), others are inert.
22
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What are the melting and boiling points of covalent network substances?
High (strong covalent bonds throughout).
23
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Are covalent network substances volatile?
No – low volatility.
24
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Are covalent network substances soluble in water?
No – insoluble.
25
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Do covalent network substances conduct electricity?
No – except for graphite and graphene (which have delocalised electrons).
26
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Do covalent network substances conduct heat?
Varies – diamond is a good conductor, others are poor.
27
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Are covalent network substances brittle?
Yes – hard but brittle (e.g., diamond, silicon dioxide).
28
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Are covalent network substances susceptible to corrosion?
No – generally chemically inert/resistant.
29
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Which bonding types have high melting/boiling points?
Ionic and Covalent network (Metallic varies).
30
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Which bonding types conduct electricity?
Metallic (always). Ionic (when molten/aqueous). Covalent network (only graphite/graphene).
31
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Which bonding types are brittle?
Ionic and Covalent network. (Metallic – no. Molecular – no, except some polymers).
32
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Which bonding types are susceptible to corrosion?
Metallic (yes). Ionic and Molecular (varies). Covalent network (no).