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AP Chemistry MIDTERM review D

Subject: 
Chemistry
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Physical quantities
Sulfates
Desiccants
Solutions
Sodium compounds
Precipitation
solubility
Potassium chloride
Chemical reaction
Sodium sulfate
salt
Enthalpy

When water evaporates at constant pressure, the sign of the change in enthalpy: a. is negative b. is positive c. depends on the temperature d. depends on the volume of water e. does not exist because the enthalpy change is zero D 100 When water evaporates, the forces holding one water molecule to another water molecule (hydrogen bonds) must be broken. To break these connections, heat energy needs to be added. Therefore this is an endothermic process with a positive delta H. 1 D 200 D 300 2H2S + O2 ? 2S + 2H2O If 102 g of H2S are combined with 64 g of O2, what is the maximum mass of elemental sulfur that could be produced by the reaction? D 400 Fe2O3 + 3CO ? 2Fe + 3CO2

Chapter 5a

Subject: 
Chemistry
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Chemistry
Bases
Equilibrium chemistry
Acids
Acid-base chemistry
Solutions
Strong electrolyte
Acid–base reaction
Acid
salt
Neutralization
Dissociation
education
behavior
Human development
Interpersonal relationships
Love
Psychoanalysis
Attachment theory
Ethology
Personal life
Technology

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.

Important Trade Routes

Subject: 
World History
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Silk Road
Silk
CNote
World Wide Web
Film
Animation
Humanities
Tags: 
World history
world
silk road
history
mongols
trade routes
Indian Ocean
Slave Trade
trans saharan
trans atlantic
colombian exchange
disease
crops
animals
small pox
aztecs
incas
silk
gold
salt
horses
Mongol empire
pax mongolica
Swahili
bantu
arabic
potatoes
corn
middle passage
haiti
camels
mines
shore
camel
caravan
This is a condensed information sheet of the major trade routes in world history. The Silk Road -Main commodities that were traded on this route were: Silk Porcelain Tea Weapons Metal work Spices Gold Silver Amber Brassware Jade Sugar Horses Cotton Salt Incense -The Silk Road was created during the Han Dynasty. The Han Dynasty and the Roman Empire used this series of trade routes to trade. -The Silk Road was safest during the time of Mongol Empire. This time period was known as the Pax Mongolica in the 13th century. This led to the spread of ideas and cultures throughout East and West Asia. The Indian Ocean Trade -South Asia traded with East Africa
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