Are Aromatic Hydrocarbons Carcinogenic Aromatic hydrocarbons or arenes are hydrocarbons characterized by alternating double and single bonds between carbons. Benzene is the most common aromatic hydrocarbon‚ but there are some non-benzene based compounds called heteroarenes‚ where a carbon is replaced by an oxygen‚ nitrogen‚ or sulfur‚ that are also aromatic compounds. Aromatic hydrocarbons exist in our daily lives regardless if we recognize them or not. Aromatic hydrocarbons are ingested or
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Holiday Gifts for Good -Silicon Valley Parents Develop GigatonGifts Website 1888 Press Release - GigatonGifts was launched in December by a group of Silicon Valley parents concerned about deforestation. Volunteer parents developed the GigatonGifts website (www.GigatonGifts.org)‚ where people can purchase trees and solar stoves in Africa and Haiti as gifts. San Francisco‚ CA - GigatonGifts was launched in December of 2013 by a group of Silicon Valley parents concerned about the planet
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special case of conjugation that leads to an especially stable bonding arrangement. The benzene ring consists of six sp2 hybridized carbon atoms in a regular hexagon. Each carbon forms two σ-bonds with adjacent carbons‚ and a third σ-bond with a hydrogen atom. The 2p orbital on each atom is available for π-bonding. Interaction between the p orbitals on the six carbon atoms forms a conjugated system of π-electrons. Molecules with this bonding arrangement are called aromatic molecules. For convenience
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reactions in organic chemistry and was first investigated by Otto Diels and Kurt Alder in Germany. It is a [4+2] concerted cycloaddition reaction which involves a diene and a dienophile. The Diel-Alder reaction are mainly used for creating new carbon-carbon bonds‚ mostly involved in forming rings which is does easily. The rings that are formed are stereospecific which is a key characteristic in these reactions. The Diels-Alder reaction is considered a pericyclic reaction which means the electron
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Quiz 7 Question 1 of 12 4.0/ 4.0 Points What is the molecular geometry of the red carbon atom in the following compound‚f[HCequiv {color{red}C }-CH_{3}f] A.bent Correct B.linear C.trigonal planar D.tetrahedral E.none of the above Answer Key: B Question 2 of 12 4.0/ 4.0 Points Which is the name of C5H12? A.n-butane B.n-heptane Correct C.n-pentane D.n-hexane E.all of the above Answer Key: C Question 3 of 12 0.0/ 4.0 Points What is the name of the following compound: CH3CH2CCH
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reaction‚ a bond is formed between two molecules and creates water as a byproduct. Aldol condensation is a C-C bond forming reaction between the alpha Carbon of the aldehyde or ketone and carbonyl carbon of another ketone or aldehyde. Aldol condensation is different from aldol condensation reaction. For aldol addition reaction‚ the alpha carbon of one aldehyde or ketone adds to the carbonyl group of the other ketone or aldehyde. This process creates a beta-hydroxy carbonyl‚ which is called aldol
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Unit 1 Key Questions Lesson 1 1. One argument against continuing research on the atom is that the cost continues to increase at an alarming rate‚ and the benefits seem to be declining. Whereas quantum chemistry experiments as early as 80 years ago were very cheap and yielded considerable practical results‚ now very few if any practical results are emerging‚ but the costs of experiments continues to increase. On the other hand
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Organic chemistry studies carbon compounds‚ but a few carbon compounds such as carbon monoxide‚ carbon dioxide‚ metal carbonates‚ and carbon disulphide traditionally come under the umbrella of inorganic chemistry. INTRODUCTORY 1. Give the following for the compound propane C3H8: (a) Full structural formula (b) Skeletal formula 2. Draw all the possible isomers of hexane C6H14 and give the name of each. 3. Draw the structural formulae for each of the following alkanes: (a) 2‚2- dimethylbutane
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Variables: Independent variable: the mass of the beans Dependent variable: the different types of beans Control: The beans Purpose: The purpose of the lab is to find equal measurement of each type of bean. After you find the mass of each bean you need to find the relative mass of each bean. The navy bean will have the smallest relative mass. You will need to wear safety goggles and a lab apron and wash hands after the lab is finished. If you drop any beans pick them up immediately to prevent
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dipole forces increase with increasing molecular weight‚ so the boiling points of the straight chain alkanes increase as the number of carbon atoms in the chain increases. Therefore pentane‚ CH3CH2CH2CH2CH3‚ has a higher boiling point than butane‚ CH3CH2CH2CH3. For the same reason‚ the boiling points of the straight chain alcohols also increase as the number of carbon atoms in the chain increases. Therefore butanol‚ CH3CH2CH2CH2OH‚ has a higher boiling point than propanol‚ CH3CH2CH2OH. Because
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