1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
elena55 [62]
4 years ago
5

Why are some polymers elastic?

Biology
2 answers:
WITCHER [35]4 years ago
5 0
<h2>Answers:</h2>

<u>Polymers are elastic because </u><u>their strength of recovering their original shape is high having very weak inter-molecular forces and low Young's modulus</u>

<h2>Explanation:</h2>

Polymer chains are held together in polymers which are elastic materials by very weak intermolecular bonds, which aloow the polymers to stretch in response to macroscopic stresses applied to them. This extreme flexibility in elastic polymers can extend from 5–700%, depending on the specific material. This elasticity is not due to covalent cross-links, but instead for thermodynamic reasons. So we can say that polymers are elastic because they have very weak inter-molecular forces and low Young's modulus.

allochka39001 [22]4 years ago
4 0

Releasing the stress allows the kinks, coils and loops to form again, and the rubber returns to its original dimensions. Materials made of long, tangled molecules stretch very easily. Their elastic modulus is very small. They are called elastomers because they are very "elastic" polymers

You might be interested in
Nonpoint sources of pollution a. include smokestacks and automobile exhaust pipes b. are more difficult to control than point so
kifflom [539]
B. are more difficult to control than point sources. This is because A. is wrong (point source), and C. is wrong, because it doesn't necessarily cost less or more to identify the sources. D. may be right, as non point sources are natural, such as snow melts or rain.
4 0
3 years ago
What is weight????????
notka56 [123]
Weight is basically the heaviness of a person or thing. 
3 0
3 years ago
Which of the following is the major reservoir for phosphorus in the phosphorus cycle?
Vaselesa [24]

Answer:

Option (E)

Explanation:

Phosphorous is an important nutrient that is found on earth. It acts as nutrients for the growth, development, and expansion of organisms like plants and animals. It is mostly found to be accumulated in the sedimentary rocks, which are formed from the compaction and solidification of sediments. This rocks when disintegrates due to the weathering and erosion, they mix up with the soil as well as water and transports from one place to another. Plants obtain these phosphatic ions directly from the soil.

Thus, the major reservoir for the phosphorous in the phosphorous cycle is the sedimentary rocks. From this only, the cycle of phosphorous initiates.

Hence, the correct answer is option (E).

6 0
3 years ago
Which of these gases, when mixed with moisture in the atmosphere, can form acid rain? A. oxygen B. nitrogen C. hydrogen D. sulfu
elena-14-01-66 [18.8K]
D. Environmental waste
5 0
3 years ago
How much does fast forward surgical teams get paid?
SVETLANKA909090 [29]
The answer is a very good amount.....
4 0
4 years ago
Other questions:
  • If there is a population of 100 birds and the allele for green (G) is dominant to the allele for blue (g), what would be the fre
    7·1 answer
  • What basic life processes must all unicellular organisms perform in order to survive
    15·1 answer
  • if two animals can reproduce and produce fertil offspring then they are members of the same (what is it)​
    14·1 answer
  • Can someone help me please<br><br><br> (Study island)
    14·1 answer
  • How are plant and animal cells similar?
    8·2 answers
  • Which of the following organisms regualry transforms radiant energy into chemical energy?
    10·1 answer
  • When a plant bends toward sunlight, the bending is an example of which characteristic of life?
    12·1 answer
  • I WILL MARK BRAINLIEST
    5·2 answers
  • GTA: TAA mRNA UCA : CAU: AUU tRNA AGU : GUA : UAA rRNA Serine Valine Stop You need to solve the entire DNA line and then answer
    12·1 answer
  • Phospholipids that form cell membranes, steroids that act as hormones, waxes that prevent water loss or water saturation, and tr
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!