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Unformatted text preview: toppings, a pizza contains the bread and cheese. Identify which of these can be classified as a thermoplastic and which is a thermoset: Bread Thermoset _ _________________ Cheese Thermoplastic _________________ The plane shown below is: a) ( 2 1 2 1 0) b)  c) (011) d) (110) d) (010) e) 220 f) (221) g) (111) h)  There are 1000 mers in a polypropylene molecule (mer structure shown below). The molecular weight is: ______42,000 g/mol or 42,000 amu _____ When a sample of Fe changes from a FCC structure to BCC structure upon cooling below 910 ° C, its volume: a) increases b) decreases The coordination number in BaO is: a) 2 b) 3 c) 4 d) 6 e) 8 The nature of bonding in Al 4 Li 9 is: a) mostly ionic b) ionic +covalent c) mostly metallic d) metallic + some ionic e) metallic + permanent dipole f) ionic + permanent dipole Name:_______________________________ y z x C H H C H CH 3 g) covalent within + secondary between molecules...
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- Spring '08
- Atom, Molecule, Chemical bond, 910°C, purely ionic bonds, 42,000 g