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Organic Chemistry Science Chemistry Homeschool act science

01/20/21

Chemical bonding word problem

Somebody help? I’m stuck with this question Warm desert winds sweep into your hotel room in Marrakech. The air conditioning has broken down and you have a very hard time sleeping due to the heat.... more

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Organic Chemistry Chemistry

01/19/21

need help with chemistry

In the balanced chemical equation below, how many moles of sodium fluoride are needed to produce 80.7 moles of calcium fluoride? CaSO4 + 2NaF —> Na2SO4 + CaF2

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Organic Chemistry

01/18/21

Payment for Tutor After First Lesson

I planned on doing a 2 hour tutoring session with a tutor I had met for the first time. I was not impressed with the tutor, and canceled the lesson after one hour. Will I be charged for the first... more

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Organic Chemistry Chemistry

01/17/21

If a substance fails to rust or tarnish, does a physical or chemical change occur?

Rusting and tarnishing are two chemical changes that matter undergoes. If matter FAILS to rust or tarnish, would you say it has undergone a chemical or physical change?

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Organic Chemistry

01/16/21

Draw a mechanism for the formation of a hemiketal from the reaction of butanone with 2-butanol.

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Organic Chemistry

01/16/21

A 17 ml sample of cyclohexanone (density = 0.95 g ml-1) is reacted with an excess of methyl magnesium bromide in anhydrous THF, then water is added to the mixture.

A. Draw and name the alcohol that is formed in this reaction.B. If 11.3 ml of the alcohol (density = 0.92 g ml-1) is obtained after purification, calculate the percentage theoretical yield of the... more

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Organic Chemistry Chemistry

01/16/21

pH of organic acids

Hi!I have started writing a lab report about a specific lab that I will be conducting on Wednesday, but before I do that lab I was hoping to finish writing down some background information in the... more

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Organic Chemistry Chemistry

01/15/21

Differentiate between organic acids

Hi!I have trouble figuring out how I should differentiate between benzoic acid and stearic acid. I've read on the internet that benzoic acid is not that soluble in water, but more soluble than... more

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Organic Chemistry Science Biology Chemistry

01/13/21

What does metabolic profiling study provide that is unique to the metabolomics alone and not to any other ''Omics'' ?

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Organic Chemistry Science Biology Chemistry

01/12/21

Extraction blanks are essential within metabolomics experiments, which of the following statements are incorrect ?

A.) The extraction blanks are treated the same as the samples and undergo the same extraction procedureB.) The extraction blanks are used to identify artifacts such as plastic or solvent... more

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Organic Chemistry Science Biology Chemistry

01/12/21

Which of these is an advantage of in-gel electrophoresis compared to gel-free approaches (choose one answer) ?

A.) Allows the type of protein modification to be identifiedB.) It is more sensitiveC.) Allows a greater range of proteins to be analyzedD.) Intract proteins allow detection of changes in protein... more

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Organic Chemistry Science Biology Biochemistry

01/12/21

Which of the answer(s) true ?

Which of the following is characteristic of the DNA methylation process ? Select one or ones that apply.A.) S-adenosyl methionine (SAM)B.) Histone acetyl transferases (HATs)C.) Histone deacetylases... more

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Organic Chemistry Chemistry

01/11/21

Amines as bases in comparison to ammonia

Hi!I wonder; why are amines stronger bases than ammonia, and why tertiary amines are stronger bases than primary amines?I can't really find an answer in the internet that uses the Bronsted-Lowry... more

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Organic Chemistry Chemistry

01/11/21

Six unknown organic compounds

Hi!I need help with a chemistry question:Question: You have six organic compounds in different test tubes. They are: Stearic acid 1-Cyclohexene 1-propanol Sodium acetate Heptane Benzoic acid You do... more

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Organic Chemistry

01/07/21

Organic chemistry

1-chloro-2-methylbutane undergoes reaction with Cl2 by a radical substitution mechanism to yield a mixture of products, among which are 1,4-dichloro-2-methylbutane and 1,2-dichloro-2- methylbutane... more

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Organic Chemistry Biology Chemistry Biochemistry

01/06/21

What is the universal methyl donor which is used by DNA methyltransferase enzymes to methylate?

What is the universal methyl donor which is used by DNA methyltransferase enzymes to methylate DNA (and is utilised to methylate other biological molecules including histones)?1. Homocysteine2.... more

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Organic Chemistry Science Biology Chemistry

01/06/21

Question about epigenetics

Q1. Epigenetics is defined as ‘Changes to the genome which are inherited from one generation to the next which alter _____ _____ but do not involve changes in the ____ _____’.1. gene sequence;... more

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Organic Chemistry Chemistry

01/06/21

explain the statement, “inorganic components make stronger acids than organic components”.

Use your understanding of acid solutions, atomic bonding theory, polarity, discussion of intramolecular bonds and intermolecular forces to explain the statement, “inorganic components make stronger... more

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Organic Chemistry Chemistry

01/06/21

For Butanamine, can you explain the relative sizes of the HNC, NCH, CCC, HC1C2, and C3C4H angles.

My teacher never showed us how to calculate the sizes of angles yet.

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Organic Chemistry Chemistry

01/06/21

List all the geometric shapes that are present in butanamine and their relative angles

Basically molecular geometry

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Organic Chemistry Chemistry

01/06/21

Order methoxymethane, cycloprop-1-yne, and butanamine in increasing level of reactivity.

I was thinking Butanamine, then cyclo, then metho, but I am not sure about it, can you also explain why you got your order?

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Organic Chemistry Science Biology Chemistry

01/05/21

How to answer this question ?

Dave's serum was analysed by capillary zone electrophoresis with a UV detector set at 210nm and a large potential paraprotein was seen (shaded in panel A). Subsequent immunofixation studies (not... more

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Organic Chemistry Chemistry Biochemistry Chem

01/05/21

Formula of Copper(II) Sulfate Hydrate Lab

Data: Mass of empty dish: 50.58 gmass of crystals and dish: 55.63mass of crystals after first heating: 54.57mass of crystals after second heating: 53.82mass of crystals after third heating:... more

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Organic Chemistry Chemistry

01/05/21

is ethylene was mixed with oxygen in a combustion reaction, how much carbon dioxide would be produced from 20g of ethylene?

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Organic Chemistry Chemistry

01/03/21

Corossion of cell metals (electrochemistry)

Write the equations of corrosion in a neutral medium and in a medium of HI.

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Answers •1

Chemical bonding word problem

need help with chemistry

Payment for Tutor After First Lesson

If a substance fails to rust or tarnish, does a physical or chemical change occur?

Draw a mechanism for the formation of a hemiketal from the reaction of butanone with 2-butanol.

A 17 ml sample of cyclohexanone (density = 0.95 g ml-1) is reacted with an excess of methyl magnesium bromide in anhydrous THF, then water is added to the mixture.

pH of organic acids

Differentiate between organic acids

What does metabolic profiling study provide that is unique to the metabolomics alone and not to any other ''Omics'' ?

Extraction blanks are essential within metabolomics experiments, which of the following statements are incorrect ?

Which of these is an advantage of in-gel electrophoresis compared to gel-free approaches (choose one answer) ?

Which of the answer(s) true ?

Amines as bases in comparison to ammonia

Six unknown organic compounds

Organic chemistry

What is the universal methyl donor which is used by DNA methyltransferase enzymes to methylate?

Question about epigenetics

explain the statement, “inorganic components make stronger acids than organic components”.

For Butanamine, can you explain the relative sizes of the HNC, NCH, CCC, HC1C2, and C3C4H angles.

List all the geometric shapes that are present in butanamine and their relative angles

Order methoxymethane, cycloprop-1-yne, and butanamine in increasing level of reactivity.

How to answer this question ?

Formula of Copper(II) Sulfate Hydrate Lab

is ethylene was mixed with oxygen in a combustion reaction, how much carbon dioxide would be produced from 20g of ethylene?

Corossion of cell metals (electrochemistry)

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