Topic 2: Chemical Bonding and Structure
- Created by: LouiseG
- Created on: 16-04-16 11:42
Other questions in this quiz
2. Which one of the following is not a giant covalent lattice?
- Diamond
- Graphene
- Potassium Iodide
- Silicon (IV) oxide
3. What causes ice to be less dense than liquid water?
- There are no intermolecular interactions between molecules as solids so the molecules drift apart
- Molecules vibrate more when cold and thus move apart, making the solid less dense
- Hydrogen bonds between molecules in ice create an open and spaced "cage" structure, which breaks down on melting
- Molecules pack more efficiently in the water liquid due to strong hydrogen bonds pulling molecules together at 180o of each other
4. If a molecule has two bonded and two lone pairs; it's ...
- v-shaped
- tetrahedral
- got a bond angle of 109.5
- trigonal bipyramidal
5. Which of these phrases is correct?
- CO2 is a polar molecule
- A molecule can have polar bonds and not have an overall polarity
- All molecules with polar bonds have permanent dipoles
- A molecule whose dipoles reinforce each other must be symmetrical.
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