AP Chemistry Syllabus 2013 Mawhiney
... Labs form a foundation for student understanding of the chemical principles discussed in lectures but are also chosen to reflect the diversity of lab work generally completed in a first year course. Analysis of data from AP Chemistry examinees shows that increased laboratory time is correlated with ...
... Labs form a foundation for student understanding of the chemical principles discussed in lectures but are also chosen to reflect the diversity of lab work generally completed in a first year course. Analysis of data from AP Chemistry examinees shows that increased laboratory time is correlated with ...
Chapter 11
... element replaces a second element in a compound. ► A +BC AC + B ► Both the reactants and the products will contain one element and one compound. ► A metal can only be replaced by a metal that is more reactive than the original. ...
... element replaces a second element in a compound. ► A +BC AC + B ► Both the reactants and the products will contain one element and one compound. ► A metal can only be replaced by a metal that is more reactive than the original. ...
Chemistry and the material world
... Answer: at 25° C the reaction occurs spontaneously (it is exergonic) ...
... Answer: at 25° C the reaction occurs spontaneously (it is exergonic) ...
I PUC Chemistry Mock Paper
... a) Explain Born- Haber cycle for the formation of one mole of NaCl b) Distinguish between closed and isolated system. ...
... a) Explain Born- Haber cycle for the formation of one mole of NaCl b) Distinguish between closed and isolated system. ...
Equilibrium Reactions
... This is a substance that speeds up a reaction without being consumed. Enzymes are catalysts that are found in our bodies. They allow our body to speed up the rate of reactions that would be too slow at normal body temperature. ...
... This is a substance that speeds up a reaction without being consumed. Enzymes are catalysts that are found in our bodies. They allow our body to speed up the rate of reactions that would be too slow at normal body temperature. ...
C:\Users\mrh70950\Documents\My Files\WordPerfect
... 1. elimination of 2 HX from geminal, 1,1-dihaloalkanes: double dehydrohalogenation using very strong bases a. E2 twice is usually mechanism b. must use strong base like NaNH2 c. anti-elimination stereochemistry of E2 is followed d. an intermediate haloalkene is generated; this alkene is the major pr ...
... 1. elimination of 2 HX from geminal, 1,1-dihaloalkanes: double dehydrohalogenation using very strong bases a. E2 twice is usually mechanism b. must use strong base like NaNH2 c. anti-elimination stereochemistry of E2 is followed d. an intermediate haloalkene is generated; this alkene is the major pr ...
The collision theory of reactions
... at 300 K only 1 in 1011 collisions between H2 and N2 results in a reaction! Even at 800 K only 1 in 104 collisions results in a reaction. The collision theory says: Reactions occur when molecules collide with a certain minimum kinetic energy. The more frequent these collisions, the faster the rate o ...
... at 300 K only 1 in 1011 collisions between H2 and N2 results in a reaction! Even at 800 K only 1 in 104 collisions results in a reaction. The collision theory says: Reactions occur when molecules collide with a certain minimum kinetic energy. The more frequent these collisions, the faster the rate o ...
Chemistry Semester One Exam Review Name:
... 11. Write the electron configurations for the following elements. LithiumNitrogenZincBromineBarium12. What is the characteristic set of valence electrons for the following groups on the periodic table? Alkali metals (1); alkaline earth metals (2); halogens (17); noble gases (18) ...
... 11. Write the electron configurations for the following elements. LithiumNitrogenZincBromineBarium12. What is the characteristic set of valence electrons for the following groups on the periodic table? Alkali metals (1); alkaline earth metals (2); halogens (17); noble gases (18) ...
document
... F. A multiplier. It is used to balance equations. 8. Synthesis Reaction G. A reaction in which two reactant compounds switch ions. 9. Decomposition Reaction H. This number tells the number of atoms of one element in a 10. Single Displacement Reaction compound. I. Bonds formed by gaining and losing 1 ...
... F. A multiplier. It is used to balance equations. 8. Synthesis Reaction G. A reaction in which two reactant compounds switch ions. 9. Decomposition Reaction H. This number tells the number of atoms of one element in a 10. Single Displacement Reaction compound. I. Bonds formed by gaining and losing 1 ...
This `practice exam`
... 21. Magnesium reacts with iodine gas at high temperatures to form magnesium iodide. What mass of MgI2 can be produced from the reaction of 4.44 g Mg and 13.4 g I2? 7.93 g 22. If 2.891 g MgCl2 is dissolved in enough water to make 500.0 mL of solution, what is the molarity of the magnesium chloride s ...
... 21. Magnesium reacts with iodine gas at high temperatures to form magnesium iodide. What mass of MgI2 can be produced from the reaction of 4.44 g Mg and 13.4 g I2? 7.93 g 22. If 2.891 g MgCl2 is dissolved in enough water to make 500.0 mL of solution, what is the molarity of the magnesium chloride s ...
Earth Science - Green Local Schools
... Average atomic mass energy levels Metal Valence electron Nonmetal Period Semiconductor Group Alkali metal Ion Alkaline-earth metal Atomic number Transition metal Mass number Noble gases Electron Cloud Model / Bohr Model Be able to find the number of neutrons, protons, and electrons in an atom Be ...
... Average atomic mass energy levels Metal Valence electron Nonmetal Period Semiconductor Group Alkali metal Ion Alkaline-earth metal Atomic number Transition metal Mass number Noble gases Electron Cloud Model / Bohr Model Be able to find the number of neutrons, protons, and electrons in an atom Be ...
Chemical Equations Balancing Chemical Equations Try One…
... (the starting substances) and the products (what is made), the arrow is the same as an “equals sign” (=) in math for the number of each type of atom must be equal on both sides (“yields” or “produces”) ...
... (the starting substances) and the products (what is made), the arrow is the same as an “equals sign” (=) in math for the number of each type of atom must be equal on both sides (“yields” or “produces”) ...
Practice Exam 2 - Department of Chemistry and Biochemistry
... A. the energy needed to remove an electron from an atom. C. the magnitude of the negative charge on an electron. E. the magnitude of the negative charge on a molecule. ...
... A. the energy needed to remove an electron from an atom. C. the magnitude of the negative charge on an electron. E. the magnitude of the negative charge on a molecule. ...
gr11chemreview
... The following questions highlight the main knowledge and skills from grade 11 chemistry. A good understanding of the concepts covered in grade 11 chemistry is essential for success in grade 12 chemistry and you may need to do some independent review of some material if you do not have a clear unders ...
... The following questions highlight the main knowledge and skills from grade 11 chemistry. A good understanding of the concepts covered in grade 11 chemistry is essential for success in grade 12 chemistry and you may need to do some independent review of some material if you do not have a clear unders ...
chapter 4 review_package
... When 4.0 grams of hydrogen is combined with an excess of nitrogen, a 92% yield of NH3 is ...
... When 4.0 grams of hydrogen is combined with an excess of nitrogen, a 92% yield of NH3 is ...
Ch 13 kinetics
... More than a balanced chemical equation, a reaction mechanism ________________________________________ . Provides a detailed picture of how a reaction occurs. Elementary step: Any process that occurs ____________________________________________________________________ Makes either ___________________ ...
... More than a balanced chemical equation, a reaction mechanism ________________________________________ . Provides a detailed picture of how a reaction occurs. Elementary step: Any process that occurs ____________________________________________________________________ Makes either ___________________ ...
Spring 2002 - Kwantlen Polytechnic University
... The rate of the reaction will decrease at higher concentrations of B The time required for one half of A to react is directly proportional to the quantity of A present. The rate of formation of C is twice the rate of reaction of A. The rate of reaction of B is the same as the rate of reaction of A. ...
... The rate of the reaction will decrease at higher concentrations of B The time required for one half of A to react is directly proportional to the quantity of A present. The rate of formation of C is twice the rate of reaction of A. The rate of reaction of B is the same as the rate of reaction of A. ...
Thermochemistry Questions
... (ΔH f) of solid Mg(OH)2, • given the following information: • Rxn 1: 2Mg (s) + O2 (g) → 2MgO (s) ΔH = -1203.6 kJ • Rxn 2: Mg(OH)2 (s) → MgO (s) + H2O (l) ΔH = +37.1 kJ • Rxn 3: 2H2O (l) → 2H2 (g) + O2 (g) ΔH = +571.7 kJ ...
... (ΔH f) of solid Mg(OH)2, • given the following information: • Rxn 1: 2Mg (s) + O2 (g) → 2MgO (s) ΔH = -1203.6 kJ • Rxn 2: Mg(OH)2 (s) → MgO (s) + H2O (l) ΔH = +37.1 kJ • Rxn 3: 2H2O (l) → 2H2 (g) + O2 (g) ΔH = +571.7 kJ ...
Gen Chem Final--review problems Fall 2006
... In a solution calorimeter, 50.0 mL of 0.100 M AgNO3 solution and 50.0 mL of 0.100 M HCl are mixed. The following reaction occurs: Ag+(aq) + Cl-(aq) Î AgCl(s) If the two solutions were initially at 22.6°C and the final temperature is 23.4°C, calculate qrxn and ΔHrxn. Assume that the surroundings are ...
... In a solution calorimeter, 50.0 mL of 0.100 M AgNO3 solution and 50.0 mL of 0.100 M HCl are mixed. The following reaction occurs: Ag+(aq) + Cl-(aq) Î AgCl(s) If the two solutions were initially at 22.6°C and the final temperature is 23.4°C, calculate qrxn and ΔHrxn. Assume that the surroundings are ...
2013 Final Exam Answers
... a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the average speed. c) The gas molecules have a very low molar mass. d) The gas molecules attract one another. e) none of these ...
... a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the average speed. c) The gas molecules have a very low molar mass. d) The gas molecules attract one another. e) none of these ...
Second exam 2014 with answers
... Last Name: ____________________________________________ First Name: _____________________________________________ Note: There are 10 questions in this exam (check both sides of the sheet). Fill in your answer in the blank space provided immediately following each question. 1/2 point will be subtract ...
... Last Name: ____________________________________________ First Name: _____________________________________________ Note: There are 10 questions in this exam (check both sides of the sheet). Fill in your answer in the blank space provided immediately following each question. 1/2 point will be subtract ...
Bioorthogonal chemistry
The term bioorthogonal chemistry refers to any chemical reaction that can occur inside of living systems without interfering with native biochemical processes. The term was coined by Carolyn R. Bertozzi in 2003. Since its introduction, the concept of the bioorthogonal reaction has enabled the study of biomolecules such as glycans, proteins, and lipids in real time in living systems without cellular toxicity. A number of chemical ligation strategies have been developed that fulfill the requirements of bioorthogonality, including the 1,3-dipolar cycloaddition between azides and cyclooctynes (also termed copper-free click chemistry), between nitrones and cyclooctynes, oxime/hydrazone formation from aldehydes and ketones, the tetrazine ligation, the isocyanide-based click reaction, and most recently, the quadricyclane ligation.The use of bioorthogonal chemistry typically proceeds in two steps. First, a cellular substrate is modified with a bioorthogonal functional group (chemical reporter) and introduced to the cell; substrates include metabolites, enzyme inhibitors, etc. The chemical reporter must not alter the structure of the substrate dramatically to avoid affecting its bioactivity. Secondly, a probe containing the complementary functional group is introduced to react and label the substrate.Although effective bioorthogonal reactions such as copper-free click chemistry have been developed, development of new reactions continues to generate orthogonal methods for labeling to allow multiple methods of labeling to be used in the same biosystems.