The speed of chemical reactions – class experiment By Julia Shuker Year 10 science – Miss Phillips – Term 2 – 2013 – Julia Shuker Aim The aim of the experiment was to investigate the factors that increased or decreased the speed of chemical reactions between two different chemical reactions. Hypothesis If certain factors‚ such as concentration‚ temperature‚ catalyst and surface area are increased then the reaction rate will also increase due to the particles
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volatile exchange rate because volatility increases exchange rate risk. If the participants in international trade are aware about exchange rate risks‚ they may prefer to switch to domestic activities where profits are relatively less uncertain rather than continuing trading in foreign markets. Alternatively‚ international traders may attempt to use forward foreign exchange markets in order to hedge against any possible losses. EXCHANGE RATE SYSTEM IN INDIA The exchange rate regime in our country
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A brief history of Exchange rate of Bangladesh Since Bangladesh was the part of Pakistan called East Pakistan‚ shared the same currency and trade-policy history as the rest of Pakistan until the liberation of Bangladesh. Bangladeshi taka was created on January 1 1972. Pakistan rupees in circulation remained legal tender until replaced by the taka 1:1 beginning March 4 1972. The taka was set at par with the Indian rupee‚ and fixed to sterling at Tk 18.9677‚ or Tk 7.2797 to the United States dollar
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Biology Task To investigate the effect of some factor affecting pulse rate Aim TO investigate how exercise affects the pulse rate. To do this‚ we took our normal pulse rate and then compared it with the pulse rate after exercise (walking). We kept all other factors constant so as to study the effect of exercise on pulse rate. Introduction Our heart is a muscle. It’s located a little to the left of the middle of our chest‚ and it’s about the size of our fist. There are lots of muscles all over
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normally recognised as a drug to most. Caffeine has an effect on your heart rate‚ (this is how fact your hear beats) Caffeine is able to change the way your body and mind works Chocolate is known to have traces of caffeine in it also The aim What is the point this experiment;- My aim in this experiment is to see what effects caffeine is prone to on the heart rate‚ Also to compare someone’s heart rate who has consumed caffeine to someone’s who hasn’t. This should give us a developed
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The Effect of Position on Heart Rate This lab explores the effect of head position on an individual’s heart rate by having a subject move it’s head while simultaneously monitoring the subjects heart rate. There were three successive periods during which the heart rate was monitored that occurred in this order: a resting stage (subject sitting upright)‚ a stage with the head positioned between the knees‚ and a recovery stage (subject returns to upright position). The graph depicts a wide range
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EXCHANGE RATES The exchange rate is the price of one country’s currency in terms of another country’s currency Quoted exchange rates can be either direct or indirect‚ Direct: home currency per unit of foreign currency 39 Rupees per US Dollars 80 Rupees per Pound Indirect: foreign currency per unit of home currency 0.0255102 US Dollar per Indian Rupee 0.491594 Pound per Indian Rupee Appreciation of Currency Currency Appreciation means that the given currency
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Bank of Canada and Interest Rates Bank of Canada Will Raise Interest Rates The Bank of Canada has indicated that it has concerns over inflation being too low. (Parkinson). However‚ inflation has been rising and the Canadian economy has strengthened over the last several months. Keeping interest rates too low over a long period of time may have a tendency to over-inflate the economy and create asset bubbles while also creating pockets of greater debt‚ not dissimilar to those that contributed to
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depreciates against the Japanese yen. The change in exchange rate a) Can have a significant economic consequences for U.S. firms. b) Can have a significant economic consequences for Japanese firms. c) Can have a significant economic consequences for both U.S. and Japanese firms. d) None of the above Answer: c) 2. Suppose the U.S. dollar substantially depreciates against the Japanese yen. The change in exchange rate a) Will tend to weaken the competitive position of import-competing
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Chemistry 12: Reaction Kinetics Review 1. Looking at the expressions for reaction rate‚ write expressions with which you could express rates for the following reactions. (Hint: look at what happens to reactants and products.) Recall that solid or liquids can lose or gain mass‚ gases can lose or gain volume and aqueous solutions can increase or decrease in concentration. ("a" is done as an example.) a) Mg(s) + 2HCl(aq) H2(g) + MgCl2(aq) reaction rate = mass of Mg consumed unit time b) c) or
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