color changes when sodium bromide solution is reacted with chlorine water and iodine solution (separately). 8. Observe what happens when 3M sulfuric acid and potassium permanganate are added to hydrogen peroxide antiseptic. Observe what happens when potassium permanganate is added to hydrogen peroxide
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ACTIVITY SERIES The activity series of metals is an list of metals ranked in order of decreasing reactivity to displace hydrogen gas from water and acid solutions. It can also be used to predict which metals will displace other metals in aqueous solutions. In introductory chemistry‚ the reactivity series or activity series is an empirical series of metals‚ in order of "reactivity" from highest to lowest. It is used to summarize information about the reactions of metals with acids and water‚ single
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companies have joined forces to develop newer cleaner technologies. The research on alternate fuel sources for cars began long ago‚ but it was not until 1999 that the first hybrid electric powered vehicle was sold. This car was manufactured by automaker Honda‚ and was called the Insight. An electric hybrid vehicle employs the operation of a small engine to assist a typically battery powered electric system. The electric motor propels the front wheels at low speeds‚ and then at higher speeds‚ the standard
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8.4 Water 8.4.1 Water is distributed on Earth as a solid‚ liquid and gas y y y Define the terms solute‚ solvent and solution Solution a homogeneous mixture of two or more substances Solute a substance that is dissolved in another substance or the component of a solution present in a lower amount. Solvent a substance which can dissolve another substance or the component of a solution present in a greater amount. Identify the importance of water as a solvent Water is essential as a reactant
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it shares hydrogen atoms. it gains or loses neutrons. 0 out of 5 The correct answer is: it gains or loses electrons. Question 7 of 20 The symbol 3CO2 represents one atom of oxygen and three atoms of carbon. three atoms of carbon and one molecule of oxygen. three molecules of carbon dioxide. one atom of carbon and three atoms of oxygen. 0 out of 5 The correct answer is: three molecules of carbon dioxide. Question 8 of 20 In water‚ hydrogen bonding occurs between the hydrogen and an oxygen
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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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that has the chemical characteristics of that element. -An element or an atom of that element often is represented by a symbol. -Usually the first letter or letters of the element’s name is/are used. For example‚ C for Carbon‚ O for Oxygen‚ H for Hydrogen‚ Ca for Calcium‚ Cl for Chlorine‚ K for Potassium and Fe for Iron. -The symbol is taken from English and Latin names. Atomic Structure: The characteristics of living and nonliving matter results from the Structure‚ Organization and behavior of
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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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