Factors affecting the rate of reaction between a metal and an acid The rate of a reaction can be measured by the rate at which a reactant is used up‚ or the rate at which a product is formed. The temperature‚ concentration‚ pressure of reacting gases‚ surface area of reacting solids‚ and the use of catalysts‚ are all factors which affect the rate of a reaction. Individual properties of substances also affect reaction rates. The scope of these properties is broad and there are few generalizations
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The time between the Middle Ages and the Renaissance is known in history as a time of great change in Western culture. It has been said that “art reflects life‚” so as culture changes across the centuries‚ so does visual art. A review of the history of art from the end of the Middle Ages to the early Renaissance also reveals many significant changes in visual features over this time period. One major change in the arts occurred in a shift of the subject of the art itself. Artists in the Middle Ages
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In order to find the formula of the copper chloride hydrate‚ we had to separate the compound to find the mass of water and copper. To begin this process‚ we evaporated the water and created an anhydrous compound‚ meaning we were left with only CuxCly. By calculating the weight of both the anhydrous and the hydrated compounds‚ we could conclude that the difference in the weights was the weight of the H2O. From this we were able to calculate the percent composition of CuxCly and H2O (see Calculations:
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We accomplished this goal by creating five reactions containing Sodium Sulfate that would confirm our compound and show its chemical properties. In each reaction‚ we replaced the presence of Sodium Sulfate with our unknown. Our first reaction was the reaction from the sulfate anion test between Sodium Sulfate and Barium Chloride. If the compound was in fact Sodium Sulfate it would produce a white precipitate and it did. The second reaction was first between Sodium Sulfate and Hydrochloric Acid‚ and
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The period of time just after Reconstruction ended to the beginning of World War I was full of change. From the “robber barons” of big business to the massive number of immigrants‚ many aspects of American life were changing‚ in both positive and negative ways. The greedy businessmen shut down competition against them and formed monopolies allowing them to set high prices and the large amount of labor allowed them to pay low wages. The immigrants worried the upper class whites because they thought
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Australia and Climate Change Australia is an Oceanic country comprised of 23.8 million citizens and it is set to be one of the countries most affected by climate change. Climate change is defined as a change in weather patterns of a regional or global scale. It has recently come to mean the change humans have affected through use of fossil fuels and other activities leading to greenhouse gases and carbon dioxide emissions. Because Australia consists of an entire continent‚ climate change will affect different
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I believe the author’s message is that masculinity is a key factor in a young man’s life and masculinity shapes their life. The author heavily inflicts the importunacy of incorporating masculinity into his reading. The author‚ Copper Thompson‚ suggests that violence maintains the two most critical socializing forces in a boy’s life. He also suggests that society advocates violence. I agree society definitely enforces physical violence‚ to an extent. Sports‚ movies etc. promotes violence as competiveness
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Chemical Reactions & Equations CHEMICAL REACTION : In a reaction when the original state of the particle changes and it cannot be reversed by simple physical means‚ this type of reaction is known as chemical reaction. Example :- Fermentation of grapes‚ burning of wood etc. In this reaction we have seen that after burning of wood‚ coal is formed and we cannot make wood from coal. PHYSICAL REACTION : In a reaction when original state of the particle can be recovered by any means then this type of
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Relationship between Climate Change and Migration There are many ways which people might be displaced or compelled to migrate because of climate change and extreme weather. Rapid – onset events include hurricane and floods which lead to displaced people temporarily. Drought and desertification are called slower – onset events. Despite slower – onset events are a gradual effect of humankind; it can become more dangerous for a long time for environmental and humankind. Droughts have already affected
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Introduction We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid. When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide. CaCO3 +2HCL Co2 +CaCl2 +H2O CalciumHydrochloricCarbonCalciumWater
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