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National 5 Chemistry: Unit 1 - Covalent Bonding
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- 11. Covalent bonds form between what type of atoms?covalent bonds form between non-metal atoms.
- 22. What causes a covalent bond?A covalent bond arises from the attraction between the two positive nuclei and the shared pair of electrons.
- 33. What does the below diagram represent?Two chlorine atoms bonded together by a covalent bond.
- 44. What are the diatomic elements?
- 55. What is the definition of a diatomic molecule?A molecule which contains only two atoms.
- 66. What shapes can a covalent molecule be?1. linear
2. bent/angular
3. triagonal pyramidal
4. tetrahedral - 77. Describe the bonds present in covalent molecular substances.Strong bonds between the atoms.
Weak bonds between the molecules. - 88. Covalent bonding can yield two different types of structures, what are they?Covalent molecular substances and covalent network substances.
- 99. Generally, what are the physical properties of covalent molecular substances?Low melting and boiling points due to the weak intermolecular bonds.
Purely covalent molecular substances do not conduct electricity as there are no charges free to move. - 1010. Generally, what are the physical properties of covalent networks?High melting and boiling points as to change the state of the chemical, covalent bonds must be broken.
Covalent networks do not conduct electricity as there are no charges free to move. Covalent networks are insoluble.
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- Fichas sobre National 5 Chemistry: Unit 1 - Covalent Bonding, creado por kzmr z el 02/01/2018.
- Creado por
- kzmr z · ene 2018
- Actualizado
- 8 ene 2018
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