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
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Lab #4: Aqueous Reactions Introduction: In this experiment we studied the two different types of aqueous chemical reactions‚ double replacement and single replacement. In a double replacement reaction one or both of the products is an insoluble ionic compound or otherwise known as a precipitate; or a non-electrolyte; or a gas. In a single replacement reaction there is typically a metal and an ionic compound consisting of a metal cation and a non-meatl anion. Singel replacement ractions occur when
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rate of reaction (mol dm-3 s-1) for the following chemical reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Research question: How does altering concentration (mol dm-3) of hydrochloric acid (HCl) affect the rate of reaction (g/s) for the following reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Background information: The reaction between calcium carbonate and hydrochloric acid is an example of a neutralization reaction between an acid and a base. Neutralization reactions involve
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Abstract “Reaction Time” is the interval of time between the application of a stimulus and the detection of a response and has been thought to differ based upon the effects of modality and warning signals. In the “Reaction Time” experiment a total of 24 students from the University of Cincinnati participated in an experiment consisting of two sensory modalities‚ audition and vision‚ which were combined with two levels of warning signal status. The two levels of warning signal status were signal
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G Ella Dierberger 4/18/11 Global History Acc Mary Foran How Were Gandhi and Ho Chi Minh Different in Their Fight for Independence? Mohandas Gandhi and Ho Chi Minh both fought against foreign rule in their country; Gandhi against the British rule in India and Ho Chi Minh against the French reign in Vietnam. However‚ Gandhi fought peacefully and religiously‚ with fasts and boycotts to gain India’s independence‚ while Ho Chi Minh was a Communist ruler who believed violence and a good military
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High School Students’ Conceptions about Energy in Chemical Reactions (focusing only in exothermic and endothermic reactions). Aim The aim of this study is to investigate students’ understanding of the energy concept in chemical reactions particularly in endothermic-exothermic reactions. Both qualitative and quantitative methodology was used for this investigation. A twenty-item multiple choice test was developed about the topic to measure the students’ understandings. This concept test was
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Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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The topic is: "My personal view of Gandhi as Mahatma." Step 2. The key terms: Term Questions‚ definitions‚ examples Leadership - Achievements of goals and he influenced our destiny. Fight against racism - He fought against racism in many ways - led campaigns‚ organized strikes etc. Struggle for independence - He spent his life to gain independence. Step 3. The overall contention I will argue in this essay is that Gandhi as a Mahatma. Step 4. In the introduction
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Compare and Contrast Gandhi and Dr. King There exist societal paths which differ based on time and place. These paths may have similar topography and may frequently converge‚ but each creates a separate journey. The belief in passive resistance is defined through the life choices of two great emancipators: Martin Luther King and Mahatma Gandhi. Passive resistance is a means of bringing about the end to legally executed injustice‚ specifically through peaceful resistance. Scholars have
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disobedience movement but the main cause of the civil disobedience movement was the salt tax and Gandhi demanded that the salt tax should be abolished. The government tells the gandhi’s demand was not a legal demand. And then Gandhi started the civil disobedience movement on 12 march 1930 with his famous Dandi march. Gandhi marched almost 375 km with his followers from Sabarmati ashram to Dandi. On 6 april Gandhi reached Dandi‚ and picked up a handful of salt and broke the salt law to show his denial of
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