Multiple choice. Please answer all questions 1) Which material can display Van der Waals Bonding? Metals Cer...
Multiple choice. Please answer all questions
1) Which material can display Van der Waals Bonding?
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Metals |
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Ceramics |
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Metals |
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Molecular Solids |
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Semi-Metals |
2) Which type of bonding is a secondary bonding?
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Metallic |
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Covelant |
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Ionic |
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Pair bonding |
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Van Der Waals |
3) What type of bonding do semi-metals have?
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Ionic |
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Van der Waals |
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Mixed covalent-metallic |
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Covalent |
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Mixed metallic-ionic |
4) Which of the following are a primary atomic bond?
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hybridize |
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valence |
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van der Waals |
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electrical |
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metallic |
5) In Hydrogen bonds:
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highly polar molecules form when hydrogen metallically bonds to a nonmetallic element |
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highlly non polar molecules form when hydrogen convalently bonds to a nonmetallic element |
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highly polar molecules form when hydrogen convalently bonds to a nonmetallic element |
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highly polar molecules form when hydrogen convalently bonds to a metallic element |
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highly non polar molecules form when hydrogen convalently bonds to a metallic element |
6) Which of the following is the bonding type of Polymer?
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Nanoionic |
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Mixed |
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Metallic |
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Ionic |
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Covalent |
7)
Equilibrium separation corresponds to the value at zero force,
which is at the lowest _______ energy?
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electrical |
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kinetic |
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mechanical |
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potential |
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spiritual |
8) In the quantum mechanical atomic model, electrons locations are described as
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spirals |
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floaters |
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orbitals |
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belts |
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clouds |
9) What determines chemical bonding characteristics?
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The atomic weight of an atom |
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The number of neutrons |
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The configuration of the nucleus |
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The configuration of the outermost orbital |
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The type of material |
10) Define Macroscopic
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An object that is visible only through an electroscope |
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An object that is too small to be visible |
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An object that is visible through a magnifying glass |
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An object that is visible through a microscope |
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An object that is visible to the naked eye |
Homework Answers
Solution:
1) Molecular solids
In molecular solids, the molecules are held togather by weak vander waal interactions.
2) vander waal
Secondary bonding are usualy operated withput the sharing of electrons. These are mainly vander waal and hydrogen bondings.
3) mixed covalent-metalic
The bonding in semimetals are intermediate between a a metal and nonmetals.
4) Metalic
Metalic bonding is primary atomic bond.
5) Option C
In hydrogen bonding the hyydrogen atom must be bonded to non-metals.
6) Covalent
In polymers, the monomer units are held togather by covalent bonding.
Add Answer to:
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