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Chemical reaction

ap chem semester final

Subject: 
Chemistry
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Quantum chemistry
Atomic physics
Molecular physics
Chemical bonding
Chemical properties
Valence electron
Ionization energy
Resonance
Chemistry
electron
ion
Chemical reaction

AP/IB Chem 1st Semester Exam Review Questions?????????????????? Multiple Choice: 1. When 12 grams of methane (CH4) is burned, the quantity of energy released is most nearly: Heat of combustion for CH4 is -891 KJ/mol. a)? 0.75 kJ?b)? 56 kJ?c)? 420 kJ?d)? 600 kJ?e)? 800 kJ 2.? The reaction of sodium bicarbonate with sulfuric acid is shown below.? 2 NaHCO3?? +?? H2SO4?? ??? Na2SO4?? +?? 2 H2O?? +?? 2 CO2???????? ?H? =? + 25 kJ/mol NaHCO3

Bio Inquiry Lab on Enzymes

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Biology
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Catalysis
Equilibrium chemistry
Enzyme catalysis
PH
Enzyme
Chemical reaction

Meredith Robbins Inquiry Lab (PH) 10/27/14 Research Question: What conditions would affect the rate of an enzymatic reaction? Null Hypothesis: The Ph and the temperature will not have an effect on the rate of enzymatic reactions. #1 Alternative Hypothesis: The Ph and temperature will have an effect on the rate of enzymatic reactions. #2 Alternative Hypothesis: The Ph and temperature will not have an effect on the rate of enzymatic reactions. Control group: The Ph level of 7 (neutral) Experimental group: Ph- 3, 5, 7, 9, 11 (I will get data for Ph 5 and 7) IV: the Ph level DV: the rate of the enzyme reactions

AP Bio Chp 2 2

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Biology
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Chemical bonding
Chemistry
Quantum chemistry
Chemical properties
Chemical bond
molecule
Covalent bond
Hydrogen bond
Valence electron
electron
Chemical reaction
Valence

AP Biology Reading Guide Chapter 2: The Chemical Context of Life Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 1 - Name_______________________Period___________ Chapter 2: The Chemical Context of Life This chapter covers the basics that you may have learned in your chemistry class. Whether your teacher goes over this chapter, or assigns it for you do review on your own, the questions that follow should help you focus on the most important points. Concept 2.1 Matter consists of chemical elements in pure form and in combinations called compounds 1. Define and give an example of the following terms: matter element compound 2. What four elements make up 96% of all living matter?

Ap Bio Chp 2

Subject: 
Biology
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Chemical bonding
Chemistry
Quantum chemistry
Chemical properties
Chemical bond
molecule
Covalent bond
Hydrogen bond
Valence electron
electron
Chemical reaction
Valence

AP Biology Reading Guide Chapter 2: The Chemical Context of Life Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 1 - Name_______________________Period___________ Chapter 2: The Chemical Context of Life This chapter covers the basics that you may have learned in your chemistry class. Whether your teacher goes over this chapter, or assigns it for you do review on your own, the questions that follow should help you focus on the most important points. Concept 2.1 Matter consists of chemical elements in pure form and in combinations called compounds 1. Define and give an example of the following terms: matter element compound 2. What four elements make up 96% of all living matter?

AP Bio Chp. 8

Subject: 
Biology
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metabolism
Catalysis
Thermochemistry
cellular respiration
Thermodynamic processes
Enzyme
Adenosine triphosphate
Endergonic reaction
Chemical reaction
Product
Endergonic
Metabolic pathway

AP Biology Reading Guide Chapter 8: An Introduction to Metabolism Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 7 - AP Biology Reading Guide Chapter 8: An Introduction to Metabolism Fred and Theresa Holtzclaw Copyright ? 2010 Pearson Education, Inc. - 1 - Name _________________________________________________ MOD____________ Date ________ Chapter 8: An Introduction to Metabolism Concept 8.1 An organism?s metabolism transforms matter and energy, subject to the laws of thermodynamics 1. Define metabolism. 2. There are two types of reactions in metabolic pathways: anabolic and catabolic. a. Which reactions release energy? b. Which reactions consume energy?

quiz 9

Subject: 
Biology
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metabolism
Medicinal chemistry
Chemical reaction
Chemistry
energy
Catabolism
Enzyme catalysis
Enzyme
Catalysis
Forms of energy
Endergonic
Polymer

Which of the following is (are) true of ligand-gated ion channels? a. They lead to changes in sodium and calcium concentrations in cells. b. They are important in the nervous system. c. They open or close in response to a chemical signal. d. Only A and B are true. e. A, B, and C are true. Which of the following can affect the rate of an enzymatic reaction a. pH b. temperature c. feedback inhibition d. A and B e. A, B and C A competitive inhibitor binds to an enzyme's a. active site b. allosteric binding site c. cooperative binding site d. A and B e. A, B and C Enzymes speed up chemical reactions by a. raising the energy of activation b. lowering the energy of activation c. lowering free energy d. increasing free energy e. B & D

quiz 1

Subject: 
Biology
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Chemical bonding
Chemistry
Chemical bond
Valence electron
Ionic bonding
Proton
Hydrogen
electron
Chemical reaction
Covalent bond
ion
Neutron

Evolution is biology?s core theme that ties together all the other themes. Which of the following is not explained by the theory of evolution? a. The unity and diversity of life. b. How organisms become adapted to their environment through the differential reproductive success of varying individuals. c. Why distantly related organisms sometime resemble each other. d. How the first living cells were formed. e. How humans have descended from common ancestors shared with other primate species. Which of the following is necessary for cell survival? a. Reading of the DNA sequence to produce proteins. b. Response to environmental conditions. c. Obtain and process energy. d. Both A and C are true. e. All of the above are true.

AP Bio Lab 13

Subject: 
Biology
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Catalysis
Enzyme
catalase
Substrate
Active site
Chemical reaction
Enzyme assay
Enzyme inhibitor

AP Lab #13 Enzyme Activity August 28, 2014 Sarah Shafik PURPOSE: Background: Enzymes are proteins that speed up the rate of a chemical formula. They lower a reaction?s activation energy, and are not consumed by the reaction either. Hypothesis: If the enzyme concentration decreases, then the enzyme activity will also decrease. If the substrate concentration decreases, then the enzyme activity will also decrease. If the pH increases, then the enzyme activity will also increase. If the temperature increases, then the enzyme activity will also increase. Key Terms Definitions: Enzymes: a macromolecule serving as a catalyst Catalase: a common?enzyme?found in nearly all living organisms

Principles of Chemistry Chapter 4

Subject: 
Chemistry
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Stoichiometry
Chemical reactions
Chemical reaction engineering
Chemistry
Yield
Limiting reagent
Air–fuel ratio
Mole
Chemical reaction
Molar mass
Chemical synthesis
Conversion

Chapter 4: Stoichiometry Section 4.2: Fundamentals of Stoichiometry Monday, September 15, 2014 2:32 PM Stoichiometry - study of relationships between quantities of reactants and products in chem reactions ? Obtaining Ratios from Balanced Equations ? -from the coefficients in the equation, all atoms are in ratios with one another Equation: CH4 + 2O2 = CO2 + 2H2O Ex: 1 mol CH4 : 2 mol O2 AND 1 mol CH4 : 1 mol CO2 **these are called "mole ratios" -frequently written as fractions -"molar mass ratios" relate molecular mass and molar mass ? ? This is a typical approach to solving reaction stoichiometry! ? Keep in mind the units for your final answer (in this case, grams of water) -also, use unit cancellation ? ?

Energy Notes

Subject: 
Chemistry
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State functions
Physical quantities
Heat transfer
Enthalpy
thermodynamics
Calorimeter
Properties of water
Heat capacity
Enthalpy of vaporization
Heat
Chemical reaction
energy

preAP Chem 2013-2014 1 NOTES: Energy in Chemical Processes Name ______________________________ Period ________ Energy and Heat ? Energy is defined as the ability to do _________ or produce ___________; the sum of all potential and kinetic energy in a system is known as the internal energy of the system. It comes from the energy stored in ____________ (______________ energy) and from the ____________ of atoms and molecules (______________ energy). ? Heat is defined as the ______________ of energy from a warmer object to a cooler object. Do not confuse the terms heat and temperature. Heat is the _____________ of the energies of the molecules

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