Chemistry, 04.11.2019 21:31 ciarrap552
What is the "glass transition temperature" of a polymer? how can it be measured? what molecular characteristics determine its value? illustrate by giving the chemical structure and tg for polyethylene, polyvinyl chloride and polystyrene. 2. what is the "glass transition temperature" of a polymer? how can it be measured? what molecular characteristics determine its value? illustrate by giving the chemical structure and tg for polyethylene, polypropylene and polystyrene.
Answers: 3
Chemistry, 22.06.2019 08:40
Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride
Answers: 1
Chemistry, 22.06.2019 12:20
The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397
Answers: 2
What is the "glass transition temperature" of a polymer? how can it be measured? what molecular ch...
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