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Slide 1 - MrCard.Org
... 4. While using the clamp to hold the test tube, use the stirring rod to push the steel wool to the bottom of the test tube. Do not pack it, but make sure the wool is at the bottom. 5. Pour enough hydrogen peroxide into the test tube so the steel wool is barely covered. 6. Place the thermometer in th ...
... 4. While using the clamp to hold the test tube, use the stirring rod to push the steel wool to the bottom of the test tube. Do not pack it, but make sure the wool is at the bottom. 5. Pour enough hydrogen peroxide into the test tube so the steel wool is barely covered. 6. Place the thermometer in th ...
5 · Chemical Reactions
... You have fifty (50) minutes to complete this test, unless other arrangements have been made. Please transfer your answers for questions in Sections 1 and 2 onto the Answer Document. Work for these questions will not be graded. However, sufficient and appropriate work must be shown for the Free Respo ...
... You have fifty (50) minutes to complete this test, unless other arrangements have been made. Please transfer your answers for questions in Sections 1 and 2 onto the Answer Document. Work for these questions will not be graded. However, sufficient and appropriate work must be shown for the Free Respo ...
Problem Set: Empirical and Molecular Formulas
... 2. The hydrochloric acid, HCl, secreted in your stomach can be neutralized by taking an antacid like aluminum hydroxide, Al(OH) 3. If 34.0 g HCl are secreted and 12.0 g Al(OH) 3 are taken, is there enough Al(OH) 3 to react with all of the HCl? (balance eq. first) 3HCl + Al(OH) 3 ...
... 2. The hydrochloric acid, HCl, secreted in your stomach can be neutralized by taking an antacid like aluminum hydroxide, Al(OH) 3. If 34.0 g HCl are secreted and 12.0 g Al(OH) 3 are taken, is there enough Al(OH) 3 to react with all of the HCl? (balance eq. first) 3HCl + Al(OH) 3 ...
Final Review
... Explain freezing point depression and boiling point elevation in terms of particles Organic Name and Draw organic molecules Know how to name and draw the functional groups Addition and Dehydration reactions Polymers Nuclear Nuclear Reactions Fission vs. Fusion ...
... Explain freezing point depression and boiling point elevation in terms of particles Organic Name and Draw organic molecules Know how to name and draw the functional groups Addition and Dehydration reactions Polymers Nuclear Nuclear Reactions Fission vs. Fusion ...
chemical reactions
... that is caused by the lack of a liver enzyme required to digest phenylalanine. Phenylalanine is an amino acid that is most commonly found in protein-containing foods such as meat, cow's milk, over the counter infant formulas (both regular and soy) and breast milk. ...
... that is caused by the lack of a liver enzyme required to digest phenylalanine. Phenylalanine is an amino acid that is most commonly found in protein-containing foods such as meat, cow's milk, over the counter infant formulas (both regular and soy) and breast milk. ...
worksheet Ka Kb buffers Ksp
... If NaCl is added to a 0.010 M solution of AgNO3 in water at 25ºC, at what [Cl ] does precipitation of AgCl begin? Ksp for AgCl = 1.8x10-10 ...
... If NaCl is added to a 0.010 M solution of AgNO3 in water at 25ºC, at what [Cl ] does precipitation of AgCl begin? Ksp for AgCl = 1.8x10-10 ...
Ch 7: Reactions
... • 2) Does your reaction have two (or more) chemicals combining to form one chemical? If yes, then it's a synthesis reaction • 3) Does your reaction have one large molecule falling apart to make several small ones? If yes, then it's a decomposition reaction • 4) Does your reaction have any molecules ...
... • 2) Does your reaction have two (or more) chemicals combining to form one chemical? If yes, then it's a synthesis reaction • 3) Does your reaction have one large molecule falling apart to make several small ones? If yes, then it's a decomposition reaction • 4) Does your reaction have any molecules ...
Unit 13 - Electrochemistry
... - The substance that is oxidized is called the reducing agent. - The substance that is reduced is called the oxidizing agent. - Single replacement and combustion reactions are redox reactions, double replacement is not a redox reaction. ...
... - The substance that is oxidized is called the reducing agent. - The substance that is reduced is called the oxidizing agent. - Single replacement and combustion reactions are redox reactions, double replacement is not a redox reaction. ...
Biochemistry I (CHE 418 / 5418)
... • Losses hydrogen – Is attached to fewer hydrogens in product than reactant ...
... • Losses hydrogen – Is attached to fewer hydrogens in product than reactant ...
Standard B-2
... o Enzymes are very specific. Each particular enzyme can catalyze only one chemical reaction by working on one particular reactant (substrate). o The structure of enzymes can be altered by temp and pH, so each catalyst works best at a specific temperature and pH. ...
... o Enzymes are very specific. Each particular enzyme can catalyze only one chemical reaction by working on one particular reactant (substrate). o The structure of enzymes can be altered by temp and pH, so each catalyst works best at a specific temperature and pH. ...
Single-Replacement Reactions
... smaller parts; microorganisms) _______________________________ ______________________________The opposite of direct combination/synthesis. You can identify this reaction because there is only one reactant. General form: AB A + B AB = compound A, B = elements or simpler compounds ...
... smaller parts; microorganisms) _______________________________ ______________________________The opposite of direct combination/synthesis. You can identify this reaction because there is only one reactant. General form: AB A + B AB = compound A, B = elements or simpler compounds ...
The Nature of Chemical Reactions
... How many nitrate molecules are in the product side? The reactant side? ...
... How many nitrate molecules are in the product side? The reactant side? ...
Solution
... = 1.83 x 1083, this is a very large K indicating that the products are strongly favored. This is consistent with the negative free energy of part (c). e) The pressure of oxygen is 5 atm and the pressure of hydrogen is 10 atm at 25°C. In which direction will the reaction shift in order to regain equi ...
... = 1.83 x 1083, this is a very large K indicating that the products are strongly favored. This is consistent with the negative free energy of part (c). e) The pressure of oxygen is 5 atm and the pressure of hydrogen is 10 atm at 25°C. In which direction will the reaction shift in order to regain equi ...
Ei otsikkoa
... energy raises an electron from one energy level to another. Since bonding in complex ions involves always d orbitals, the electron transition occurs within the split d orbital. ...
... energy raises an electron from one energy level to another. Since bonding in complex ions involves always d orbitals, the electron transition occurs within the split d orbital. ...
Chapter 1
... *Notes-A ______Subscript_________ is a number written below and to the right of a chemical symbol. C6H12O6 The 6, 12, and 6 are all subscripts. *To find the number of atoms in a compound you should __add____ the subscripts. *Notes-If there is no subscript, only __1_____ atom of that element is prese ...
... *Notes-A ______Subscript_________ is a number written below and to the right of a chemical symbol. C6H12O6 The 6, 12, and 6 are all subscripts. *To find the number of atoms in a compound you should __add____ the subscripts. *Notes-If there is no subscript, only __1_____ atom of that element is prese ...
Reactions Unit Plan
... http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/redox/ho me.html ...
... http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/redox/ho me.html ...
CHEMISTRY 1 FINAL EXAM REVIEW
... 1.) Identify the type of reaction for those listed below: A. a reaction in which a single compound is broken down into simpler substances B. a reaction in which oxygen reacts with another substance, often producing heat or light C. a reaction in which the atoms of one element replace the atoms of a ...
... 1.) Identify the type of reaction for those listed below: A. a reaction in which a single compound is broken down into simpler substances B. a reaction in which oxygen reacts with another substance, often producing heat or light C. a reaction in which the atoms of one element replace the atoms of a ...
precipitation rxn_level_packet
... Directions for the following 4 reactions: a. In one well of a well-plate, add three drops of each substance. b. Write down your observations for the reactants above. c. In parenthesis provided above, indicate if the product is soluble with an “aq” or forms a precipitate (solid) with an “s.” 1. Write ...
... Directions for the following 4 reactions: a. In one well of a well-plate, add three drops of each substance. b. Write down your observations for the reactants above. c. In parenthesis provided above, indicate if the product is soluble with an “aq” or forms a precipitate (solid) with an “s.” 1. Write ...
Title - Iowa State University
... 16) How many moles of sulfur are present in 45g of Al2(SO4)3? (MM: 342g/mol) a)0.132 moles of S b) 0.392 moles of S c)0.78moles of S ...
... 16) How many moles of sulfur are present in 45g of Al2(SO4)3? (MM: 342g/mol) a)0.132 moles of S b) 0.392 moles of S c)0.78moles of S ...
UNIT 7 – CHEMICAL REACTIONS
... 1. A third type of double-replacement reaction that occurs in aqueous solutions results in the formation of a ...
... 1. A third type of double-replacement reaction that occurs in aqueous solutions results in the formation of a ...
TERM 2 Unit 3 YR 9 SCI It is elementary
... 9 SCIENCE – Term 2 Unit 3: IT’S ELEMENTARY (5 WEEKS) ...
... 9 SCIENCE – Term 2 Unit 3: IT’S ELEMENTARY (5 WEEKS) ...
Review Sheet: Unit 6 Name__________________ CHEMISTRY: A
... information about the chemical composition of a compound. Consequently, chemists rely on a chemical ____________ when representing a chemical compound. ____________ compounds are composed of a metal and a nonmetal while ____________ compounds are formed between nonmetals. In formulas for binary ioni ...
... information about the chemical composition of a compound. Consequently, chemists rely on a chemical ____________ when representing a chemical compound. ____________ compounds are composed of a metal and a nonmetal while ____________ compounds are formed between nonmetals. In formulas for binary ioni ...
Lewis acid catalysis
In Lewis acid catalysis of organic reactions, a metal-based Lewis acid acts as an electron pair acceptor to increase the reactivity of a substrate. Common Lewis acid catalysts are based on main group metals such as aluminum, boron, silicon, and tin, as well as many early (titanium, zirconium) and late (iron, copper, zinc) d-block metals. The metal atom forms an adduct with a lone-pair bearing electronegative atom in the substrate, such as oxygen (both sp2 or sp3), nitrogen, sulfur, and halogens. The complexation has partial charge-transfer character and makes the lone-pair donor effectively more electronegative, activating the substrate toward nucleophilic attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles.Many classical reactions involving carbon–carbon or carbon–heteroatom bond formation can be catalyzed by Lewis acids. Examples include the Friedel-Crafts reaction, the aldol reaction, and various pericyclic processes that proceed slowly at room temperature, such as the Diels-Alder reaction and the ene reaction. In addition to accelerating the reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases.Early developments in Lewis acid reagents focused on easily available compounds such as TiCl4, BF3, SnCl4, and AlCl3. The relative strengths of these (and other) Lewis acids may be estimated from NMR spectroscopy by the Childs method or the Gutmann-Beckett method. Over the years, versatile catalysts bearing ligands designed for specific applications have facilitated improvement in both reactivity and selectivity of Lewis acid-catalyzed reactions. More recently, Lewis acid catalysts with chiral ligands have become an important class of tools for asymmetric catalysis.Challenges in the development of Lewis acid catalysis include inefficient catalyst turnover (caused by catalyst affinity for the product) and the frequent requirement of two-point binding for stereoselectivity, which often necessitates the use of auxiliary groups.