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Chemistry

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Chemistry Chapter 2 TB

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Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 2:Atoms, Molecules, and Ions 2.1 Multiple-Choice and Bimodal Questions 1) A certain mass of carbon reacts with 13.6 g of oxygen to form carbon monoxide. __________ grams of oxygen would react with that same mass of carbon to form carbon dioxide, according to the law of multiple proportions? A) 25.6 B) 6.8 C) 13.6 D) 136 E) 27.2 Answer: E Diff: 3 Page Ref: Sec. 2.1 2) Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen, a ratio of 3:1 by mass. In ethane, there are 24.0 g of carbon for every 6.00 g of hydrogen, a ratio of 4:1 by mass. This is an illustration of the law of __________. A) constant composition

Chemistry Chapter 1 TB

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Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 1:Introduction: Matter and Measurement 1.1 Multiple Choice and Bimodal Questions 1) Solids have a __________ shape and are not appreciably __________. A) definite, compressible B) definite, incompressible C) indefinite, compressible D) indefinite, incompressible E) sharp, convertible Answer: A Diff: 1 Page Ref: Sec. 1.2 2) __________ is the chemical symbol for elemental sodium. A) S B) W C) So D) Na E) Sn Answer: D Diff: 1 Page Ref: Sec. 1.2 ? 3) If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________. A) heterogeneous mixture

Stoichiometry

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Stoichiometry

Chemistry 1210: General Chemistry Dr. Gina M. Florio 13 September 2012 Jespersen, Brady, Hyslop, Chapter 4 The Mole and Stoichiometry CHE 1210 Lecture Slides G.M. Florio 1 Conversion Factors Conversion Factor ? relates one quantity to another ? used to convert between two units in chemistry What is my height in centimeters (cm) if I am 5 feet 4 inches tall? 1. How many inches are in a foot? 2. How many inches are in a centimeter? 12 inches = 1 foot 1 inch = 2.54 cm Factor Label Method The factor-label method, or dimensional analysis lets us treat a numerical problem as one involving a conversion from one kind of units to another using conversion factors.

Acid Base Reactions

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Chemistry 1210: Introduction to General Chemistry Dr. Gina M. Florio 20 Sept. 2012 Jespersen, Brady, Hyslop Chapter 5A Molecular View of Reactions in Aqueous Solution A solution is a homogeneous mixture in which the two or more components mix freely. The solvent is taken as the component present in the largest amount. A solute is any substance dissolved in the solvent. Definitions CH. 5.1 Example of a Solution Formation of a solution of iodine molecules in ethyl alcohol where ethyl alcohol is the solvent and iodine the solute: CH. 5.1 Crystal of I2 placed in ethanol: A solution of I2 in ethanol: Properties of Solutions: Qualitative Composition The relative amounts of solute and solvent are often given without specifying the actual quantities.

Chapter 1

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? PAGE ?12? Chapter ? DOCPROPERTY "ChapterNumber" \* MERGEFORMAT ?1?: New World Beginnings, 33,000 B.C.-A.D. 1769 Chapter ? DOCPROPERTY "ChapterNumber" \* MERGEFORMAT ?1?: New World Beginnings, 33,000 B.C.-A.D. 1769 ? PAGE ?11? Chapter 1 New World Beginnings, 33,000 B.C.-A.D. 1769 Use the following to answer questions 1-21: Identify and state the historical significance of the following: 1. Marco Polo 2. Francisco Pizarro 3. Juan Ponce de Le?n 4. Hernando de Soto 5. Montezuma 6. Christopher Columbus 7. Hern?n Cort?s 8. Francisco Coronado 9. Robert de La Salle 10. Jacques Cartier 11. Giovanni da Verrazano 12. John Cabot 13. Vasco Nunez Balboa 14. Ferdinand of Aragon 15. Isabella of Castile 16. Quetzalcoatl 17. Bartholomeu Dias 18. Hiawatha

Metric System

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SocialTags: 
Chemistry
Measurement
Physics
Thermodynamics
State functions
Heat transfer
Physical quantities
Units of energy
Calorie
International System of Units
Food energy
Heat capacity
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Metric System
Joules
Kelvins

Conversions Regarding the Metric System and some Associated Formulas By Toomuchswag Sources: My Chemistry Notes and http://www.simetric.co.uk/siprefix.htm for some verification Most of the world besides the United States uses the metric system, a much simpler measuring tool according to many. The Metric system works in powers of ten: The prefixes work like this: Kilo Hecto Deca R (this is the regular unit, be it meters, grams, etc. we have given it the letter R) Deci Centi Milli Some important formulas: Density: Mass/Volume 1calorie or cal is the amount of energy required to raise the temperature of water by 1 degree Celsius

Metric System Brief Review

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Chemistry
Metric System
Joules
Kelvin
Celsius
Specific Heat

Conversions Regarding the Metric System and some Associated Formulas By Toomuchswag Sources: My Chemistry Notes and http://www.simetric.co.uk/siprefix.htm for some verification Most of the world besides the United States uses the metric system, a much simpler measuring tool according to many. The Metric system works in powers of ten: The prefixes work like this: Kilo Hecto Deca R (this is the regular unit, be it meters, grams, etc. we have given it the letter R) Deci Centi Milli Some important formulas: Density: Mass/Volume 1calorie or cal is the amount of energy required to raise the temperature of water by 1 degree Celsius

sEPARATING MIXTURES LAB WRITE UP

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Jordan Paterson B ? 1 Mr. Macias Separating Mixtures Purpose: The Purpose of this lab is to separate a mixture into the 3 separate components. Equipment: Filter Bunsen Burner Magnet Hot Plate Beaker Wire mesh Evaporating Dish Scale Graduated Cylinder Spatula Funnel Lighter Chemicals: Iron Filings Sand Salt Hazards: Bunsen Burner (gas, open flame) Hot Plate (very hot) Beaker (glass) Lighter (flame) Procedure: Weigh out 3.25 grams of mixture Use magnet to separate iron shavings Pour sand, salt, and 20 mL of water into filter paper, inside the funnel Set up ring stand Take the water that went through the filter paper and put it in a beaker Put wire mesh onto the ring, and place the beaker on top of that

sEPARATING MIXTURES LAB WRITE UP

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Jordan Paterson AP World History SUMMER ASSIGNMENT Neolithic Revolution The Neolithic Revolution was a fundamental change in the way people lived. It was the shift from hunting and gathering that led to permanent settlements and the establishment of social classes, and eventually the rise of civilization. Culture The behaviors and beliefs characteristic of a particular age, social, or ethnic group, arts and other manifestations of human intellectual achievement regarded collectively. It's important because it shows that everyone in the world is different, and culture is a big part of that. Natural Selection

Chapter One Review Guide

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Hai Lun Tan H. Chemistry Period 5 September 18, 2012 Chapter 1 Review Guide 3 States/Phases of Matter: Solid: definite shape, definite volume Liquid: indefinite shape, definite volume Gas: indefinite shape, indefinite volume (able to become compressed) 3 Classes of Matter: Element: pure substance (cannot be separated by chemical means) that can?t be broken down into simpler substances, only one kind of atom. The Periodic Table Compound: pure substances that can be broken down into simpler substances, by chemical reaction Mixtures: 2 or more substances, each still having its own visible properties. Heterogeneous mixture - separate, different visible parts Homogenous mixture (solution) ? same properties, clear throughout, able to easily separate. Pure substance vs. mixture:

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