To prevent the previously discussed risks related to the equipment and substances used in the synthesis reaction‚ safety procedures were discussed with the teacher‚ the fume cupboard was used‚ hands were washed‚ correct disposal procedures were followed‚ Disinfectant was used to wipe down benches‚ no flammable or loose clothing was worn‚ long hair was tied back‚ no naked flames were used‚ the safety shower and eye bath was available‚ first aid facilities were available‚ required spill management
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Chemical Reactions Lab Objectives: 1. To examine a variety of reactions including precipitation‚ acid-base‚ gas forming‚ and oxidation-reduction reactions. 2. To identify the products formed in these reactions and summarize the chemical changes in terms of balanced chemical equations and net ionic equations. 3. To identify the species being oxidized and reduced in oxidation-reduction reactions and determine which species is the oxidizing agent and the reducing agent. Chemical equations represent
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purpose of this experiment was to discover the chemical properties that copper has when reacting with other chemicals and how it changes physically during these processes. (Department of Chemistry‚ 2013) This was achieved through many types of reactions‚ such as a redox reaction‚ double displacement‚ decomposition reaction and single displacement depending on the chemical properties in relation to copper of the other substances when it was added with copper. Copper was either in an aqueous state or a solid
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Affecting Reaction Rate Lab Report Objective: To observe and record the different effects of reactants on concentration‚ surface area‚ and temperature‚ on the reaction rates for each. Materials: Refer to the Experiment 18A worksheet Procedure: Refer to the Experiment 18A worksheet Data Table: Mass of 11cm strip of Mg: 0.13g Average mass of 1 cm piece of Mg: 0.0118 Table 1: Effect of Concentration on Reaction Rate Concentration of Acid Reaction Time (s) Reaction Rate (g Mg/s)
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neither be created or destroyed. There are two types of changes that can happen‚ a physical change is when the reaction can be reversed and all reactants are separated. A chemical change is when the reaction changes the reactants and creates a brand new substances that can’t be reversed. Antoine Lavoisier had the main contribution to The Law of Conservation. He wrote a textbook in 1789 on chemistry in it he introduced the Law of Conservation. He founded the 3 types of matter (solid‚ liquid‚ and gas). Along
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Rachel Smith Design Lab: Kinetics Lab Introduction: ! Background Information- Effervescent tablets reduce stomach acid and help treat upset stomachs. The familiar fizzing you hear when you drop an Alka-Seltzer tablet into a glass of water is the result of a chemical reaction. After dropping the tablet into the water‚ the reaction causes the solid tablet to become dissolved and releases tiny bubbles of carbon dioxide. This reduces the time it takes for the medicine to work as it does not need to dissolve
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TITLE: THE EFFECT OF HEATING DIFFERENT SUBSTANCES INTRODUCTION: In this exercise‚ it was required to observe carefully what happened when certain substances were heated in a burner‚ and to note the appearance of the residue after heating. AIM: To observe the effects of heating different substances. MATERIALS: Hard glass test tubes Powered samples of Lead (II) nitrate Copper (II) sulphate Ammonium chloride Zinc sulphate Basic copper (II) carbonate‚ CuCO3. Cu(OH)2
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Soda and Mentos Reaction: Any kind of Soda and Mentos interaction will expedite a geyser of both carbon dioxide and foam. Soda has a few properties‚ for instance‚ an sweetener or an artificial flavouring‚ but it’s main factor that contributes to the reaction is carbonated water. Carbonated water is basically water with Carbon Dioxide compressed within it‚ it causes the drink to be fizzy and bubbly. This contributes to the reaction because it the fizz and bubbles are gas‚ which tries to escape from
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Discussion The purpose of this lab is to display the influence of retronasal olfaction when it comes to flavor. Humans have two different types of olfaction. Olfaction is the detection of chemicals in the air. These chemicals which are meant to activate odor receptors‚ are called odorants. Humans have approximately 20 million olfactory receptors‚ which is only a fraction compared to bloodhounds who have 4 billion. The first type of olfaction is called orthonasal olfaction which is inhaling. Here
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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)
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