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
Lelechka [254]
3 years ago
14

Silicones can be oils or rubber-like materials depending on ________. Select one: A. the silicon-to-oxygen ratio B. the length o

f the chain and degree of cross-linking C. the percentage of carbon in the chain D. the oxidation state of silicon in the chain E. the percentage of sulfur in the chain
Chemistry
1 answer:
Luba_88 [7]3 years ago
6 0

Answer: B-- the length of the chain and degree of cross-linking.

Explanation: Silicones can be oils or rubber-like materials depending on ___the length of the chain and degree of cross-linking.____

Silicone rubber is an elastomer which is composed of silicone containing silicon together with carbon, hydrogen, and oxygen. silicone rubber can be found in a wide variety of products because of its ability to withstand very high temperatures and pressures. eg cooking and food storage products; clothing apparels , automotive devices etc   while

Silicone oil is a linear chain siloxane repeating units Si--0 with radical side group as such as methyl, phenyl etc  bonded to it. They are oils because of they are  viscose  and have ability to  repel. Silicone oils are mostly employed in medicine for surgical tools.

You might be interested in
A solution with a pH of 11 has a [H+] of...
hram777 [196]

Answer:

c. 1×10^-11

Explanation:

ph= -log[H+]

[H+]= 10^-ph

=10^-11

= 1×10^-11

8 0
3 years ago
How many moles of each element are in one mole of (NH4)2S? (3 points)
cricket20 [7]

Answer:

b 1 mole of nitrogen 6 hydro 1 sulfur

3 0
3 years ago
Read 2 more answers
Draw the product formed when 2-butanol undergoes reaction with TsCl and Et3N. CH3C6H4SO2Cl.
Pie

Answer:

Explanation:

In organic chemistry, the reaction between 2-butanol with TsCl and Et3N is known as the tosylation of the alcohol hydroxyl group. Alcohol is being changed to tosylate by the use of tosyl chloride under the influence of a base. Tosylation of alcohol is an example of a nucleophilic substitution reaction. From the image attached below, we will see how the reaction between 2-butanol proceed into the product by using tosyl chloride and a base(Et3N).

4 0
3 years ago
A substance has a volume of 20mL and a density of 2.5 g/mL. what is it’s mass?
DochEvi [55]
2.5X20=50g
50g should be the right answer
Mass=volumeXdenisty.
4 0
3 years ago
Two compounds are standing at the same temperature. Compound "A" is evaporating more slowly than compound "
Tju [1.3M]
I believe the answer is compound B may have a lower molecular weight compared to compound A. 
At the same temperature, lighter particles of a compound have a higher average speeds than do heavier particles of another compound. Thus, particles of compound B are lighter than those of compound A and thus they have a higher average speed, hence evaporating faster compared to compound A.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A chemist adds of a M copper(II) fluoride solution to a reaction flask. Calculate the mass in micrograms of copper(II) fluoride
    6·1 answer
  • A large area of flat land elevated high above sea level is called a a. syncline. b. plateau. c. canyon. d. fault
    5·2 answers
  • 2. A gas absorbs 21.39 kJ of energy while expanding against 0.276 atm from a volume of 0.0432 L to 1.876 L. What is the energy c
    12·2 answers
  • 2 Points<br> What kind of bond would many atoms of the same metal make?
    15·1 answer
  • In order for a chemical reaction to take place, a certain amount of _____________ must be present. A. heat B. friction C. chemic
    13·2 answers
  • What happens to the average kinetic energy of the molecules of a warm substance when the temperature of the substance is slightl
    9·2 answers
  • The energy released during ________ reactions can be used to drive ________ reactions, and this is called ________ reactions.
    13·2 answers
  • Explain why are hydrogen and oxygen considered wheares water as a compound
    7·1 answer
  • How many moles are in 152 grams of H20?
    15·2 answers
  • If a 50kg water rocket takes off with a force of 250 newtons, what is its acceleration?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!