Reactions in Aqueous Solutions: Metathesis Reactions and Net Ionic Equations Introduction: Metathesis or double decomposition reactions are a reaction in which two compounds react to form two new compounds‚ with no changes in oxidation number. The ions of two compounds exchange partners. AX + BY AY + BX This reaction can occur between two inorganic salts when one product is insoluble in water‚ driving the reaction forward. A typical example is as followed and is considered a molecular equation
Premium Sodium chloride Chlorine Chemistry
1. Determine the order of the reaction A --> 2B + C from the following data obtained for [A] as a function of time. time | [A] | 0 min | 0.80 M | 8 mins | 0.60 M | 24 mins | 0.35 M | 40 mins | 0.20 M | ------------------------------------------------- Use diferential and half life. 2. Balance the equation below and determine the rate expression using the given data. Find k with units. N2 + H2 ---> NH3 (all gaseous) [N2] (mole/L) | [H2] (mole/L) | Initial Rate (mole/L /min)
Premium Chemical reaction Rate equation Chemistry
Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time
Premium Chemical kinetics Reaction rate Chemical reaction
The Painful Result of British Colonialism A study by National Geographic suggest that when New England colonists first arrived at Plymouth rock in 1620‚ the population of Native Americans was 18 million; by the year 1622‚ almost 90% of the population had been eliminated. It all began when the New England colonists landed on Plymouth in 1620. The colonists had started to build a colony when they met Massasoit. Massasoit and a man known as William Bradford created a peace treaty between
Premium United States Native Americans in the United States Indigenous peoples of the Americas
Colonialism is the establishment‚ influence‚ and exploitation of a piece of land through a political power from another country. One way for colonialism to happen is to create settlements in a foreign region. The Spanish had enough resources and supreme military power to take over the Americas despite the rebelling natives. “The Europeans conquered it‚ in spite of resistance by some 300 native people” (Chapman 4). “As early of 1598‚ Juan de Onate had led a group of colonists to the region north of
Premium United States Colonialism Indigenous peoples of the Americas
Drug abuse in Africa Sections ABSTRACT Introduction Historical background Current drug abuse situation in Africa Effects of drug abuse in Africa Control mechanisms Future trends Details Author: T. ASUNI ‚ A. O PELA Pages: 55 to 64 Creation Date: 1986/01/01 Drug abuse in Africa T. ASUNI Department of Psychiatry‚ College of Medicine‚ University of Lagos‚ Lagos‚ Nigeria A. O PELA Clinical Pharmacy Unit‚ Faculty of Pharmacy‚ University of Benin‚ Benin‚ Nigeria ABSTRACT Apart
Premium Drug addiction Africa Drug
The Displacement Reactions Purpose: to see how displacement reaction works with different chemicals and what chemical has more reactivity series then other Hypothesis: Iron + Copper Sulfate: Iron will displace copper because it is more reactive and it is going to end up as Iron Sulphide + Copper Copper + Silver Nitrate: Copper will displace Silver because it is more reactive and it is going to end up as Copper Nitride + Magnesium + Copper oxide: Magnesium will displace Copper because it
Premium Aluminium Chlorine Hydrogen
Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
Premium Oxygen Carbon dioxide Sodium bicarbonate
26‚ 2010 Experiment No. 2 – Coupled Reactions R.S. Velasco Institute of Chemistry‚ College of Science University of the Philippines‚ Diliman Quezon City‚ Philippines Received Dec. 1‚ 2010 ------------------------------------------------- ------------------------------------------------- ABSTRACT The reaction of carbon dioxide gas to form carbon monoxide and oxygen gas is non-spontaneous (∆G > 0)‚ thus we coupled it with the reaction that has a free energy that is negative
Premium Carbon dioxide Magnesium Oxide
Imperialism has had long lasting negative effects on the countries in Africa. The reason European nations colonized Africa was for economic purposes and to spread their culture because they thought it was superior. By colonizing Africa‚ they did not do any good for the natives. The Europeans only concern was to benefit themselves‚ not to benefit Africa. The nations were not prepared for independence by their European power which lead to unstable governments and dictatorships. Their economies were
Premium Colonialism Africa