which each forms. Ch 3.3 “Ion Formation” “Covalent Bonding” “Polarity in Water Molecules and Hydrogen Bonding” How Atoms Bond; Examples of Hydrogen Bonds http://www.youtube.com/watch?v=QqjcCvzWwww&list=PL3FE5B87E56E7A849&index=3 10 Describe the atomic components and their bonding in water molecules as an example of a compound having polar covalent bonds. Ch 3.3 “Polarity in Water Molecules and Hydrogen Bonding”
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The reason that Sodium gives electrons when reacting with a substance such as Chloride instead of sharing electron in a reaction such as the Hydrogen and Oxygen forming water molecules can be found in the type of bond in each example reaction. Before I can identify the contrasting characteristics of each reaction‚ I must first acknowledge the reason atoms react with one another in the first place. Each element has a certain number of valence electrons‚ an example being Sodium having one valence electron
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mass stars‚ begin to form from clouds of gas and dust in space. They both begin as a protostar and eventually become dense enough to cause hydrogen fusion within them; placing them both on the main-sequence. The only difference is high mass stars are able to get through this process quicker due to their increased gravity from their higher mass. Once the hydrogen is used up‚ like low mass stars‚ high mass stars start to form shells of heavier elements up to carbon. Then unlike low mass stars they are
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NMR Project Sample 35 and 40 Chemical Engineering Chemical Analysis Aim The two samples are 35 and 40. Analytical techniques are vital in everyday science and so NMR procedure is an absolute essential to deduce compounds and chemical structures; this assignment requires the identification of two samples using an NMR software program. Background NMR spectroscopy is a well established method for structure determination of various organic molecules ranging from small molecules all the
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hydrophilic nature of paper? i. Hydrogen bonding would occur between the hydroxyl groups of glucose and the water molecules. Since hydrogen bonding is the strongest intermolecular force‚ the hydrogen bonds between the glucose in cellulose and water would make paper very hydrophilic. b. Explain the types of intermolecular interactions that would occur between the FD&C Red No.40‚ Blue No.1 and Yellow No. 5 food dyes and the paper. i. Red No. 40 and Yellow No. 5 would form hydrogen bonds with the paper. Blue
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Abstract This lab is performed in order to determine the total energy in a reaction between zinc and hydrochloric acid. The reaction is done twice‚ once to measure the heat of the reaction and again to determine the work done in the system. This is because Enthalpy equals heat plus work (∆H= ∆E+W). Heat and work can be broken down further into separate components so the equation used in lab is ∆H=mc∆T + PV. Many calculations are used in the lab to find out what cannot be measured directly (ex:
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polychlorinated biphenyl‚ pyridine‚ 2‚4‚5-T‚ and parathion. PCB The first chemical to be effected by the fire is the PCB (polychlorinated biphenyl). This chemical is used as an electro conductor in the transformer and cools the transformer. PCB contains hydrogen‚ carbon and chlorine. This chemical can cause skin irritation and redness of skin in its original form if skin contact does occur. The LD50 for PCB is 8500 – 11‚900 ppm. Exposure to PCB can cause defatting and chlorance. Both of these are from
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seconds top dissolved 2) Benzophenone is a nonpolar molecule and is soluble in nonpolar solvents‚ such as hexane. It does not have potential for hydrogen bonding‚ which is why it is insoluble
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From the table‚ the result of dehydration of secondary alcohol is expected‚ and it undergoes E1 elimination. As supposed in the theory and mechanism‚ because elimination can occur both sides of secondary carbocation‚ so there are three products: 1-butene‚ trans-2-butene and cis-2-butene with three peaks. The main product is trans-2-butene‚ because it is the most stable compound. However‚ the result of dehydration of primary alcohol is not expected. It is supposed to form only one product‚ 1-butene
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through three features. The first is a loss of oxygen from a bond or loss of a bond to oxygen as in the case of carbon-oxygen double bond to a carbon-oxygen single bond. The second is the addition of hydrogen to a bond and thirdly‚ the replacement of a more electronegative atom with carbon or hydrogen. In redox reactions‚ the reductant (or reducing agent) loses electrons and is oxidized while the oxidant (or oxidizing agent) gains electrons and is reduced. The reducing agent transfers electrons to
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