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Quantum chemistry

Atomic Structure

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Atomic Structure Atomic structure of an atom based on energy relative to size of an electron can be measured with Einstein?s formula of e=mc2. However, energy of an electron within an atom based on how long a wavelength takes to pass can be determined with the formula of constant= wavelength x frequency. Electromagnetic Radiation is described with wavelike energy with both magnetic and electrical properties. Waves of electrons (atoms) are within radiation additionally wave measurements can be made with the wavelength, frequency, and the speed of light (constant). Wavelength= Indicated with lambda, described as the length of a wave from one crest to another. Frequency= Measured in Hz (1/s), the number of waves that pass per second

Basic Chemistry Review (PreAP level)

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1 THE MOST BASIC CHEMISTRY REVIEW This review is intended to remind you of the BASICS that you learned. It is NOT COMPLETE. CLASSIFYING MATTER elements, compounds, or mixtures PROPERTIES OF MATTER INTensive?a property that doesn?t depend on amount (ex- boiling point) Extensive?a property that does depend on amount (ex- mass or volume) density ? amount of matter in a given volume Density = mass volume units: g/cm3 for solids, g/mL for liquids density column Example A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water? If the wood were cut into three pieces would it have the same density?

AP Chemistry Zumdahl 7E Chapter 7 Notes

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AP Chemistry A. Allan Chapter 7 Notes - Atomic Structure and Periodicity 7.1 Electromagnetic Radiation A. Types of EM Radiation (wavelengths in meters) 10-12 10-10 10-8 4 to 7x10-7 10-4 10-2 1 102 104 Wavelength increases Frequency decreases Energy decreases Speed is constant = 2.9979 x 108 m/sec B. Properties of EM Waves 1. Wavelength (l) a. Distance between two consecutive peaks or troughs in a wave b. Measured in meters (SI system) 2. Frequency (n) a. Number of waves that pass a given point per second b. Measured in hertz (sec-1) 3. Speed ( c ) a. Measured in meters/sec 4. Relationship of properties a. c=nl gamma xrays UV visible IR micro Radio waves FM short AM 7.2 The Nature of Matter

ap chem semester final

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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

AP Bio Chp 2 2

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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

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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?

BIO CH 2 TEST

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Campbell's Biology, 9e (Reece et al.) Chapter 2 The Chemical Context of Life This chapter presents basic chemical principles for understanding the chemical context of living organisms, from atomic structure to the nature of chemical bonds and an introduction to chemical equilibrium. These questions focus on elements most important to life or the study of life, including the elements that comprise organic molecules and important trace elements. Some isotopes are important in geologic dating and in biological tracer studies. How elements participate in forming different types of chemical bonds is essential to mastering subsequent topics on the behavior and properties of biological molecules, structures, and energy metabolism. Multiple-Choice Questions

ap_bio_ch_1_2.ppt

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Introductory Questions #1 Name the seven main properties of life. (Pg. 3) Which of the hierarchial levels of biology is the lowest in regard to carrying on and sustaining all life activities and is the fundamental unit of life? (pg 5) Introductory Questions #1 3. In your own words briefly describe what ?emergent properties? are. 4. How is negative feedback different from positive feedback? (pg. 11) What do these mechanisms do for a living thing? 5. Name the three domains of life. Which domain includes four out of the six kingdoms of life? 6. Why is natural selection considered the ?mechanism? for evolutionary adaptations to occur? 7. How is a hypothesis different from a theory?

Principles of Chemistry Chapter 8

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Chapter 8: Molecules and Materials Section 8.2: Condensed Phases--Solids Monday, October 13, 2014 1:00 PM Arrangements of Solids: ? Crystalline solid - solids with regular, repeating geometric arrangements of atoms, ions, or molecules Amorphous solids - noncrystalline solid with random arrangement of atoms or molecules ? **crystalline solids are more common and well-known ? Arrangements can be thought of as packing marbles together in a box (especially since atoms are spherical) We can reduce space between atoms--but not eliminate it--by rearranging the atoms in the structure "packing efficiency" - percentage of total volume that is actually occupied by atoms in a crystal lattice Affected by density of the material ? ? ? Types of Structures ? ? Cubic Crystal lattices: ? ? ?

Principles of Chemistry Chapter 6

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Chapter 6: The Periodic Table & Atomic Structure Section 6.2: The Electromagnetic Spectrum Monday, September 15, 2014 3:06 PM Visible Light - portion of electromagnetic spectrum that we can see, typically with wavelengths between 400 / 700 nanometers ? Electromagnetic Spectrum - various forms of light, consisting of oscillating electric and magnetic fields ? ? ? The Wave Nature of Light ? Wavelength - distance between corresponding points on a wave Amplitude - height of the wave from equilibrium position Frequency - number of cycles of a wave passing a certain point per second (measured in Hz) **note: amplitude corresponds with brightness, wavelength and frequency correspond with color ? Speed of light ( c ) : c = lamda x v = wavelength x frequency ? The Particulate Nature of Light

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