Aim It is to tell how the reaction between magnesium and hydrochloric acid will be effected if we change the concentration of hydrochloric acid. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid‚ because it is higher in the reactivity series than hydrogen
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chemical reactions and determine if they are exothermic or endothermic. Apparatus: • Test tubes {Around 10-12 in number} • Test-tube rack • Spatula • Digital thermometer { ± 0.1° C} • Digital balance {± 0.01 g} • Measuring cylinder {± 0.5cm³} • Different chemicals Introduction/Theory: Exothermic reactions are those reactions that release energy in the form of heat. Endothermic reactions need to absorb energy in the form of heat to proceed. Enthalpy is the
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The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) | Colorless
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Displacement Reaction The objective of this experiment was to observe evidence of a reaction and to determine the chemical equation‚ if there is a reaction. In order for a reaction to occur‚ a metal strip must have evidence of black or grey deposits on the surface of the metal once dipped into the solution. The reactivity of an element is related to its tendency to lose or gain electrons. Three metal strips that were used are copper‚ lead and zinc as well as the solutions of silver nitrate‚ copper(II) nitrate
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Paper BCOM/275 June 4‚ 2012 Quinton Murphy Chilean Copper Mine Collapse This paper will discuss in how important it’s to know your audience. When having to communicate a disaster like the Chilean copper mine that occur in South America it’s one example of where knowing your audience was a very important issue. This disaster in the Chilean copper mine‚ a disastrous downfall in one of the shafts of the mine has
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Chemical Reactions and Equations Chemical Reaction: The transformation of chemical substance into another chemical substance is known as Chemical Reaction. For example: rusting of iron‚ setting of milk into curd‚ digestion of food‚ respiration‚ etc. In chemical reaction new substance is formed which is completely different in properties from the original substance‚ so in a chemical reaction chemical change takes place. Following are the signs of chemical reaction: (a) Change of state of substance
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USING BLEACHING POWDER A CHEMISTRY INVESTIGATORY PROGECT ANSHUL KUMAR PANDEY XII B [THIS PROJECT LOOKS AT THE TECHNIQUE CALLED STERILIZATION OF WATER USING BLEACHING POWDER WHICH IS USED TO PURIFY WATER AND MAKES IT FIT FOR DRINKING.] Downloaded from www.icbse.com INDEX 1. Certificate of Authenticity 2. Acknowledgement 3. Introduction -Need of Water -Purification of Water -Need for a stable purification technique 4. Theory -History of Water purification -Bleaching powder and its preparation
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Chemistry 112: Anion Analysis Page 7 ANION ANALYSIS M uch of the work you will be doing in the Chemistry 112 laboratory will be concerned with identifying positive and negative ions‚ that is‚ cations and anions‚ in solutions whose composition is unknown. This procedure is called QUALITATIVE ANALYSIS. The modern chemist frequently wishes to identify the constituents in a very small amount of substance‚ and so he depends heavily on instrumental methods of analysis. While the procedures
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DATE: 21-01-14 ANALYSIS OF COPPER IN BRASS BY UV – VISIBLE SPECTROSCOPY AIMS/OBJECTIVES; To determine the percentage of copper in brass by UV-visible spectroscopy. INTRODUCTION Electromagnetic radiation‚ of which ultraviolet and visible light are but two examples‚ has
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sodium bicarbonate or sodium hydrogen carbonate. Sodium bicarbonate (Baking soda) is shown as a white powder which looks like salt. Baking powder contains an amount of raising agents which are E450 Diphosphates‚ E500 Sodium Carbonates‚ and Maize Starch. By heating this up there will be a release of carbon dioxide‚ which will be put into test in my experiment to prove my hypothesis. Baking powder and baking soda both produce carbon dioxide‚ which helps raise baked products. Recipes that use baking
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