Chemistry, 01.07.2019 05:30 anonymousgirl2002
Give me the reasons of the solution! 1. as a polymer becomes more crystalline, a) its melting point decreases b) its density decreases c) its stiffness decreases d) its yield stress decreases e) none of the above is correct. 2. in the smectic a liquid-crystalline phase, a) the molecules are aligned along their long axes, with no ordering with respect to the ends of the molecules b) the molecules are arranged in sheets, with their long axes parallel and their ends aligned as well c) the molecules are aligned with their long axes tilted with respect to a line perpendicular to the plane in which the molecules are stacked d) disk-shaped molecules are aligned through a stacking of the disks in layers e) the molecules are oriented in a totally random fashion 3. for a substitutional alloy to form, the two metals combined must have similar a) ionization potential and electron affinity. b
Answers: 1
Chemistry, 21.06.2019 23:00
City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.
Answers: 2
Chemistry, 22.06.2019 04:20
Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.
Answers: 1
Chemistry, 22.06.2019 06:10
Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.
Answers: 1
Chemistry, 22.06.2019 08:30
Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?
Answers: 2
Give me the reasons of the solution! 1. as a polymer becomes more crystalline, a) its melting point...
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