15. A covalent bond is one where a) An atom, molecule or ion that contains an unpaired electron b) Two electrons are shared by two atoms c) Electrostatic attractions hold together oppositely charged ions d) An electron pair is spread out over several atoms and helps bond them all.

Q: Why each polymer gives a different melting temperature, Tm?

A: Polymer is consisting of more no. Of monomer . By connecting many repeating unit they are made up…

Q: H # # # H 4 I I L II 1 ク-3ー City CHy H CH, ぎ

A: The given polymer structure is:

Q: 6 H 1 H 1 H 11 10 8 6. 5 4 3 1 HSP-03-214 ppm F 00

A: The given formula is C3H8O .So,according to the given formula they have given the NMR and IR…

Q: 20. What is the best method used to separate the components of the mixture of benzene, toluene, and…

A:

Q: НО OCH₂ 1. Na 2. dilute H2O

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: The geometry of trimethyl amine N(CH3)3 is pyramidal with bond angle of 108.7 degrees whereas the Si…

A: The geometry of trimethyl amine N(CH3)3 is pyramidal with bond angle of 108.7° whereas the Si analog…

Q: Explain the relationship between monomers and polymers.?

A: In chemistry, a monomer is a single molecule and the building block of the polymer. For example,…

Q: 13. Acetaminophen, a popular painkiller, has the following structure: H он C= || CH,-C-N-C С—ОН H H…

A:

Q: 03 (CH3)2S

A: ->Ozonolysis refers to the organic chemical reaction where ozone is employed to cleave the…

Q: high polarity.

A: 7) polypropylene is lower flexural strength .It is 40 MPa

Q: Define and explain London dispersion forces

A: EXPLANATION: London Dispersion forces: London forces also callled as dispersion forces. London…

Q: Explain the main properties of polymers that make them desirable  for many applications

A: Polymers are macromolecules formed by the covalent bonding of monomer units. Polymers are very…

Q: 4. For ONE of the following molecules, list all the functional groups. The hormone, prostaglandin OR…

A: The organic compound is formed by two main elements, carbon, and hydrogen. The specific group of…

Q: 10) Circle any conjugated portions in the molecules below. OCH3 H2C 11) Circle the compound(s) which…

A: Double bond conjugation is the main reason of resonance. Higher is the no. Of conjugation higher…

Q: Aramids (such as Kevlar) are macromolecular compounds which can lead to desired materials for…

A: H-bonding It is the bonding between H and electronegative atoms like F, O and N is called H-bonding.…

Q: Draw and then rank order these polymers from highest tensile strength to lowest:…

A: Ans. polytetrafluoroethylene (PTFE): Polytetrafluoroethylene, or PTFE, is made of a carbon backbone…

Q: (5), 7. Bel₂(aq) + Cu₂SO4(aq) →→→

A: The question is based on the concept of chemical reactions.  We need to identify the reaction &…

Q: 15. Nylon and cotton are a. addition polymers b. condensation polymers

A: Nylon and cotton both are classified as condensation polymer. Nylon is a polyamide as it form…

Q: 7- is making plastic into a new polymer. incineration O recycling O biodegradable 8-Plastic that is…

A: Incineration -  Incineration is a process of burning of waste material present in organic Substances…

Q: 6 Convert ethanol into a polyethylene glycol chain (better known as PEG. You can google the…

A: The functional group is a key component associated with a molecule that furnishes the notable…

Q: Define polymer

A: Polymers are frequently used in our day-to-day life and can be defined as shown below:

Q: Three molecular requirements for crystallinity in polymers

A: POLYMERS: Polymer is a macromolecule which is made up of small monomer molecules that are…

Q: ) when you start with the original formula, p1 v1=p2v2, what do you get when you isolate P1? 2) A…

A:

Q: An introduction and defention for polymers?

A: Polymers are those class of materials which have high molar mass and they are widely used in today's…

Q: Differentiate DNA and RNA bases on their structure, function and characteristics

A: Structure The DNA is a double-stranded molecule that has a long chain of nucleotides. The RNA is a…

Q: Which one below is true for thermoplastic polymers? * They are harder and stronger than…

A: The correct option is (d) (a) They are harder and stronger than thermosetting polymer. It is false…

Q: (2a⁴b³/ c⁶)³

A: Given, (2a4b3/c6)3

Q: ) What is the meaning of each the following :(choose four only) 1.Synthesis 2.Nanostructured…

A:

Q: CH₂1₂ Zn(Cu) diethyl ether

A: When an alkene reacts with CH2I2 in the presence of Zinc a cyclopropane derivative is formed. This…

Q: II. Cite the importance of organic chemistry in various fields like industry, health, and medicine.

A: Organic chemistry is defined as the branch of chemistry which deals with the preparation, properties…

Q: None

A: To solve the question, lets fill in the missing structures in the pathway step by stepStep-by-Step…

Q: O Macmillan Learning A portion of the polymer polystyrene is shown. H C-C- Ο Η H H HICIH | H H H H H…

A: Polystyrene is a polymer composed of repeating units linked together to form a long chain.

Q: 1. Write the structure of the polymer, tetrafluoroethylene (up to 10 carbons in length).

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: KOH changes into K2CO3 after absorbing CO2 gas. Select one: True False

A: Given here a statement as follows,KOH changes into K2CO3 after absorbing CO2 gas.we are asked the…

Q: Hanging drop method is useful in determining cellular shapes - rod, coccus, or spiral O True O False

A: Bioinorganic chemistry is branch of chemistry in which we deal with chemical reaction occurs…

Q: Y =Y. dilute NaOH + NaCl CI Он Conc. H,SO, H,O OH

A: In an addition reaction one molecule combine with other to form a large molecule. In elimination…

Q: Briefly describe the answers pertaining to the following 2. What is the name of the type of…

A: The given reaction is taking place in presence of light so this is an example of  free radical…

Q: 1- has higher tensile strength. * О Ероху O polyethylene O polypropylene

A: Definition: Tensile strength, maximum load that a material can support without fracture when being…

Q: What is the change in oxidation number for the carbon indicated by an asterisk in sucrose and carbon…

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…

Q: The structure shown is an example of a type of macromolecule (carbohydrate, lipid, protein, or…

A:

Q: Syrofoam volumetric density. Dimensions of a polystyrene sample with a regular shape (cuboid):…

A: Volumetric density or density of syrofoam will be given as = Mass of syrofoam / Volume of syrofoam

Q: Which point is not related to transition metal= O They exhibit high melting and boiling points O…

A: Correct Option : They do not show variable valency

Q: SeO2 4. Ph SeO2 5.

A: Selenium Dioxide (SeO2) is an oxidising agent used to carbonyl compounds or alkene compounds. It…

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.