Organic Chemistry

Which of the following is the correct representation of partial charges at the indicated atoms?

Which of the following is the correct representation of partial charges at the indicated atoms?

[html]Which of the following is the correct representation of partial charges at the indicated atoms?

joshtatum92   210   3 Replies

Dark_Shadow

Need help designing an NPK ratio determining formula for a compost business

Need help designing an NPK ratio determining formula for a compost business

At our compost facility, we shred Carbon-rich Materials, Nitrogen-rich Materials, Phosphorus-rich Materials, and Potassium-rich Materials, then measure them in litters for blending to produce organic compost. we use an  Aerated Static Pile (ASP)

kelvin mugittu   195   N/A

kelvin mugittu

Theoretical yield

Theoretical yield

The alcohol in "gasohol" burns according to the following equation:
C2H5OH (l) + 3 O2 (g)  2 CO2 (g) + 3 H2O (l)
a) What is the theoretical yield of carbon dioxide when 12.5 g of ethanol, C2H5OH, reacts with 35.0 g of oxygen?

Anonymous   111   1 Reply

Anonymous

Line angle struc utre of ch2ch2ch(oh)ch(ch3)2

Line angle struc utre of ch2ch2ch(oh)ch(ch3)2

line angle struc utre of ch2ch2ch(oh)ch(ch3)2

Anonymous   84   1 Reply

bio_man

Uranium + Bismuth chain reaction in a nuclear reactor.

Uranium + Bismuth chain reaction in a nuclear reactor.

What will be the chain reaction of Uranium + Bismuth (Combination) in a nuclear reactor?

Prashant S Akerkar

prashantakerkar   230   3 Replies

bio_man

How would you improve yield/purity using thermodynamics, stoichiometry, or kinetics?

How would you improve yield/purity using thermodynamics, stoichiometry, or kinetics?

How would you determine the success or failure of an experiment using thermodynamics, kinetics, or stoichiometry? How would you improve yield/purity using thermodynamics, stoichiometry, or kinetics, using literature values?

I.e. the synthe

sdgdsg   136   1 Reply

linlinlin

Which of the given descriptions is(are) consistent with biodegradable polymers?

Which of the given descriptions is(are) consistent with biodegradable polymers?

[html]Question 1.Which of the given processes is(are) used in the recycling of soft drink bottles made of PET?

▸ acid hydrolysis

▸ esterification

▸ melting

▸ B and C

▸ none of theseQuestion 2.

RHCP12   156   1 Reply

melryandion

Which of the given functional groups are common in biodegradable polymers?

Which of the given functional groups are common in biodegradable polymers?

[html]Question 1.Which of the given monomer(s) are used to prepare the polymer Bakelite?

▸ thermoplastics

▸ phenol and formaldehyde

▸ phenol and acetaldehyde

▸ phenol and methanol

▸ none of theseQuest

bundlecrap   168   1 Reply

bhturner

The strength of the thermosetting polymers like Bakelite is due to ________.

The strength of the thermosetting polymers like Bakelite is due to ________.

[html]Question 1.Which of the choices is the best classification of the polymer Bakelite?

▸ fibers

▸ elastomers

▸ plasticizers

▸ thermoplastics

▸ thermosetting resinsQuestion 2.The streng

tennisalex   135   1 Reply

nursethomas

Which of the choices is the best classification of Nylon?

Which of the choices is the best classification of Nylon?

[html]Question 1.Which of the choices is the best classification of chewing gum?

▸ fibers

▸ elastomers

▸ plasticizers

▸ thermoplastics

▸ thermosetting resinsQuestion 2.Which of the choice

unrendezvous   144   1 Reply

ryan_navarro5

Which of the choices is the best classification of crystalline polymers with high tensile strength?

Which of the choices is the best classification of crystalline polymers with high tensile strength?

[html]Question 1.Which of the choices best describe elastomers?

▸ polymers that can form fibers

▸ polymers that are hard at room temperature

▸ polymers that return to original shape after being stretched

▸ small molecules

Kss612   129   1 Reply

naderaide

Which of the given polymers is(are) classified as elastomers?

Which of the given polymers is(are) classified as elastomers?

[html]Question 1.Which one of the choices is the best classification of an amorphous polymer that is flexible?

▸ fibers

▸ thermosetting resins

▸ plasticizers

▸ elastomers

▸ thermoplasticsQuestion 2.

Godty   113   1 Reply

janel989

Addition of ________ to thermoplastics increases flexibility of the polymer.

Addition of ________ to thermoplastics increases flexibility of the polymer.

[html]Question 1.Which of the given polymers is(are) classified as thermoplastics?

▸ LDPE

▸ PET

▸ HDPE

▸ PVC

▸ all of theseQuestion 2.Addition of ________ to thermoplastics increases flex

karamvir19   114   1 Reply

pigglyoink14

Which of the given polymers are hard at room temperature and soft at high temperature?

Which of the given polymers are hard at room temperature and soft at high temperature?

[html]Question 1.The melt transition temperature (Tm), is the temperature at which the ________ regions of the polymers become ________.

▸ cry

harry32   105   1 Reply

rl679

The glass transition temperature (Tg), is the temperature at which the ________ regions of the ...

The glass transition temperature (Tg), is the temperature at which the ________ regions of the ...

[html]Question 1.________ regions in polymers make the polymer flexible.

▸ Amorphous

▸ Crystalline

▸ Cross linked

▸ B and C

▸ none of theseQuestion 2.The glass transition temperature (

dbomb1   116   1 Reply

lyssa1605

________ regions in polymers make the polymer hard and durable.

________ regions in polymers make the polymer hard and durable.

[html]Question 1.Which of the choices best describes crystallites?

▸ linearly arranged chains with disulfide bridges

▸ linearly arranged chains held together by van der Waals forces

▸ hydrogen bonding between chains

▸ cros

prpnum1   109   1 Reply

bryrdan

SBR (styrene-butadiene rubber) is used in the manufacturing of automobile tires. What is the ...

SBR (styrene-butadiene rubber) is used in the manufacturing of automobile tires. What is the ...

[html]Question 1.Neoprene, which is used in gaskets, electrical insulation, and other products, has the structure shown. What is the structure of the monomer?

arunasingh5   107   1 Reply

tk9790

Which of the given elements is used during the vulcanization of rubber?

Which of the given elements is used during the vulcanization of rubber?

[html]Question 1.Vulcanization of rubber results in ________ between the neighboring chains of the polymer.

▸ hydrogen bonding

▸ salt bridges

▸ disulfide bridges

▸ phosphide bridges

▸ none of theseQue

mktrujillo   106   1 Reply

nnenne

Which of the given types of polyethylene is used to make Tupperware?

Which of the given types of polyethylene is used to make Tupperware?

[html]Question 1.Which of the given types of polyethylene is used to make trash bags?

▸ HDPE

▸ MDPE

▸ LDPE

▸ A and C

▸ none of theseQuestion 2.Which of the given types of polyethylene is

pixiedust7891   108   1 Reply

Loveameriah

Free radical polymerization of ethylene results in ________.

Free radical polymerization of ethylene results in ________.

[html]Question 1.Polymerization of ethylene in the presence of a Ziegler-Natta catalyst results in ________.

▸ MDPE

▸ LDPE

▸ HDPE

▸ B and C

▸ none of theseQuestion 2.Free radical polymeri

bmwprincess   101   1 Reply

shanej399

Draw a possible segment of isotactic poly(vinyl acetate).

Draw a possible segment of isotactic poly(vinyl acetate).

[html]Question 1.Draw a possible segment of syndiotactic poly(vinyl fluoride).

Nursesn   111   1 Reply

ndedrick

Draw a possible segment of syndiotactic polyacrylonitrile.

Draw a possible segment of syndiotactic polyacrylonitrile.

[html]Question 1.Draw a possible segment of isotactic polyacrylonitrile.

maryanne.jones3   92   1 Reply

fs125

Draw a possible segment of atactic polyacrylonitrile.

Draw a possible segment of atactic polyacrylonitrile.

[html]Question 1.A syndiotactic polymer has a ________ configuration.

▸ random

▸ alternating

▸ same

▸ block

▸ graftQuestion 2.Draw a possible segment of atactic polyacrylonitrile.

lindseyw   89   1 Reply

naderaide

An atactic polymer has a ________ configuration.

An atactic polymer has a ________ configuration.

[html]Question 1.An isotactic polymer has a ________ configuration.

▸ random

▸ alternating

▸ same

▸ block

▸ graftQuestion 2.An atactic polymer has a ________ configuration.

▸ random

▸ a

adotey   97   1 Reply

nguyenphuc1990

Which of the choices best describes the polymer shown?

Which of the choices best describes the polymer shown?

[html]Question 1.Which of the choices best describes the polymer shown?

lindseyw   101   1 Reply

andrat

Which of the choices best describes the polymer shown?

Which of the choices best describes the polymer shown?

[html]Question 1.Which of the given statements is(are) true about linear polymers?

▸ they are highly branched

▸ they may be slightly branched

▸ they can have no branching

▸ A and B

▸ B and CQuestion 2

ssi15   95   1 Reply

cheesoslimo

What polymer is used in rope?

What polymer is used in rope?

[html]Question 1.What polymer is used in bicycle helmets?

▸ Nylon 6

▸ Teflon

▸ Kevlar

▸ Lexan

▸ Nylon 6,6Question 2.What polymer is used in rope?

▸ Nylon 6

▸ Teflon

▸ Kevlar

▸ Lexan

harry32   97   1 Reply

marcospolos

What is the polymer that is used in bullet-proof vests?

What is the polymer that is used in bullet-proof vests?

[html]Question 1.Provide the structure of a region of the polymer that is produced when isocyanate, shown below, is treated with 1,4-butanediol.

rbayla   93   1 Reply

cheezeh3ad

What monomer(s) would produce the polymer shown?

What monomer(s) would produce the polymer shown?

[html]Question 1.What is the classification of the polymer shown?

JSmith1   106   1 Reply

Keleko12

________ polymers are formed under conditions in which the individual monomers react with each other ...

________ polymers are formed under conditions in which the individual monomers react with each other ...

[html]Question 1.What are the monomers in a polyurethane?

▸ carboxylic acid and amine

▸ diisocyanate and diol

▸ isocyanate and alcohol

▸ amide and alcohol

▸ ester and amineQuestion 2.____

hardy7luver   118   1 Reply

teamroket

Which of the given polymerization processes best describes the formation of polyisobutylene?

Which of the given polymerization processes best describes the formation of polyisobutylene?

[html]Question 1.Which of the given polymerization processes best describes the formation of polyurethanes?

▸ step growth addition

▸ chain growth addition

▸ step growth condensation

▸ chain growth condensation

▸ none of t

swimchk13   94   1 Reply

sania24

Which of the given polymerization processes best describes the formation of polycarbonates?

Which of the given polymerization processes best describes the formation of polycarbonates?

[html]Question 1.Which of the choices are examples of step growth polymerization?

▸ cationic polymerization

▸ condensation polymerization

▸ anionic polymerization

▸ radical polymerization

▸ none of these

nrod1120   93   1 Reply

skdiveelis

Which of the choices are examples of chain growth polymerization?

Which of the choices are examples of chain growth polymerization?

[html]Question 1.What is not an example of a small molecule that is released in a condensation reaction?

▸ nitrogen gas

▸ water

▸ benzene

▸ carbon dioxideQuestion 2.Which of the choices ar

pattytcakes   99   1 Reply

isaw09

Identify the type of compound used to make safety goggles.

Identify the type of compound used to make safety goggles.

[html]Question 1.What monomers form Lexan?

▸ adipic acid and Bisphenol-A

▸ phosgene and Bisphenol-A

▸ terephthalic acid and 1,6-hexandiamine

▸ phosgene and 1,6-hexandiamine

▸ adipic acid and 1,6-hexandiamine

rsteel   90   1 Reply

LaceyCGibson

What monomers form Nylon 6,6?

What monomers form Nylon 6,6?

[html]Question 1.What monomers form PET?

▸ phosgene and ethylene glycol

▸ terephthalic acid and carbamate

▸ urethane and carbamate

▸ terephthalic acid and propylene glycol

▸ terephthalic acid and ethylene glycol

nrod1120   100   1 Reply

ochie92

Provide the structure of a region of the polymer that is produced when the given monomers are ...

Provide the structure of a region of the polymer that is produced when the given monomers are ...

[html]Question 1.Provide the structure of a region of the polymer that is produced when phosgene is treated with 3,3-dimethyl-1,5-pentanediol.

doggerfresh   108   1 Reply

AdieMichelle

What is the structure of the monomer(s) that would produce the condensation polymer shown?

What is the structure of the monomer(s) that would produce the condensation polymer shown?

[html]Question 1.What is the structure of the monomer(s) that would produce the condensation polymer shown?

msidhu   102   1 Reply

relisabeth

Nomex is a synthetic polymer with the structure shown. What is the structure(s) of the monomer(s) ...

Nomex is a synthetic polymer with the structure shown. What is the structure(s) of the monomer(s) ...

[html]Question 1.Which of the given monomers would produce the condensation polymer shown?

aznmistyblue   119   1 Reply

Ludacris2065

Which of the given monomers would produce the condensation polymer shown?

Which of the given monomers would produce the condensation polymer shown?

[html]Question 1.What is the structure of a region of the polymer that is produced when the given monomers react?

fabz06   106   1 Reply

LaceyCGibson

Which of the given monomers would produce the condensation polymer shown?

Which of the given monomers would produce the condensation polymer shown?

[html]Question 1.Which of the choices is (are) condensation polymer(s)?

▸ nylon 6,6

▸ polyisobutylene

▸ poly(vinyl chloride)

▸ polycarbonate

▸ A and DQuestion 2.Which of the given monomer

gslwong   109   1 Reply

Akabbett1