electron-deficient Lewis base and electron-rich Lewis acid in the absence of compounds that are unable to donate protons. There are two types of boron-hydrogen bonds‚ in which the classical B-H bond is a 2-center-2-electron bond similar to the carbon-hydrogen bond. The non-classical bond‚ however‚ has two electrons formed between two boron atoms and one hydrogen atom‚ making it a 3-center-2-electron bond1. Although this bonding is unique‚ boron hydrides are common reagents in organic syntheses1.
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What is hairspray made of? Hairspray is a solution of long‚ chainlike molecules (called polymers) in a very volatile solvent. Spraying deposits a stiff layer of the polymer on your hair after the solvent evaporates. The solvent used was once a compound of carbon‚ fluorine‚ and chlorine (a chlorofluorocarbon‚ or CFC). CFCs are nontoxic‚ nonflammable‚ and make almost ideal aerosol propellants. But when it was learned that they causedestruction of stratospheric ozone‚ they were replaced with other
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three atoms of carbon and one molecule of oxygen. Comments The correct answer is: three molecules of carbon dioxide. Max Score: 5 Actual Score: 0 Question 8 In water‚ hydrogen bonding occurs between the hydrogen and Your Answer for Question
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Part 2: Real Chemical Reactions: _ _Now let’s work with real chemical reaction‚ one that creates a very entertaining BOOM! What is the mole ratio for the reaction of hydrogen and oxygen to produce water? The mole ratio is 2 to1 to 1_ Complete the table below while making water H2O from hydrogen H2 and oxygen O2: Hydrogen Molecules H2 Oxygen
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thing form in chemical reactions? Products are the finished product of a chemical equation‚ and reactants are what make up the products. ( atoms‚ matter‚ molecules‚ energy‚ rate‚ temperature) Name some compounds: H2O (Hydrogen and Oxygen elements - Water) CH4 (Carbon and Hydrogen elements - Methane) NaCl (Sodium Chloride- salt) Different types of compounds: Metal + Metal = Metallic Compound Metal + Non-Metal = Ionic compound Non-Metal + Non-Metal = Covalent compound Different types of reactions:
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ENERGY BALANCE Desulphurizer Here Sulphur in Naphtha is made to react with Hydrogen in presence of catalysts to give Hydrogen Sulphide. This reaction takes place at a temperature of 623 K H2 + S Hydrogen and Naphtha are assumed to be stored at 303 K Specific Heat capacity of naphtha is assumed to be 3.5235 kcal/kmol Specific Heat capacity of Hydrogen =(6.62+0.00081T) kcal/kmol K ∆H = ∑ ni ∫ C pi dT = 6.015915 x10 6 kcal hr i Hence heat required to raise their temperature from 303 K to
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created precipitation). To further conclude the identity of the 2nd unknown substance a second step was done‚ which was a pH test through the use of the universal indicator (measures pH by containing various indicators that respond differently to Hydrogen ions). A controlled test was done to ensure the pH scale was correct‚ and once the two concentrations were placed into the diluted indicator (through water) a distinct purple was achieved. This points closely towards either Sodium or Potassium carbonate
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Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain by a single covalent bond are called straight chain hydrocarbons. 12. Branched chain hydrocarbons
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FOUNDATION CHEMISTRY II CHM096 CHAPTER 1 ORGANIC CHEMISTRY PART I PREPARED BY SYED ABDUL ILLAH ALYAHYA BIN SYED ABD KADIR 1 TOPICS PART I 1.1 1.2 1.3 1.4 1.5 Introduction to Hydrocarbon and Functional Groups Alkanes and Cycloalkanes Isomerism and Overview of Organic Reaction Alkenes and Alkynes Alkyl Halides 2 TOPIC INTRODUCTION TO HYDROCARBON AND FUNCTIONAL GROUPS 3 1.1 Introduction to Hydrocarbon and Functional Groups What is Organic Chemistry?
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hydrochloric acid slowly and observe the reaction. Next‚ place a burning splint near the mouth of the test tube to test for the presence of hydrogen gas. 4. Electrolysis of water Use a U-tube with electrodes at each end‚ connected to a battery. Fill the U-tube with water. Turning on the battery‚ observe the results at each electrode. Next‚ test for hydrogen and oxygen gas produced at each end of the tube. 5. Burning magnesium Place magnesium ribbon in a clean crucible (on a clay triangle above
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