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Sample essay topic, essay writing: Chemistry Planning And Designing Lab - 327 words

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Lab#Date:Topic: The reactivity seriesProblem: Which of the following metals are more reactive with acids - magnesium, zinc, aluminum, iron, lead, and copper?Hypothesis: Aluminum is the most reactive with acids because it occurs in group III.Aim: To perform a comparative test on which metal is the most reactive with acids.Experiment: A comparative test is done using time to find which metal has the fastest reaction Skill: P & DApparatus : Equipment: 1. 6 beakers2. Water3. Measuring cylinder4. Watch or ClockMaterials: 1. Aluminum foil2.Copper coin3.Lead pellets4.Zinc from a battery5. Magnesium from Antacid6.

Iron ShavingsReagents: 1. HClProcedure: 1 Rinse the containers with distilled water.2. Pour 25cm3 of HCl in each beaker by use of measuring cylinder.3.Insert each of the different sample metals into a beaker one at a time.4.Observe and record the amount of time before the reaction stops with clock.5. Make a table of your observations.6. Setup a control using water as the reagent.Variables: Independent: Aluminum foil, Copper coin, lead pellets, Zinc from a battery, Magnesium from Antacid, and Iron Shavings.Dependent: Reaction TimeControlled: HClControl: This is an identical experiment using water as your reagent.Data: The reaction time for the different metals , to show which is the most reactive in acids.Metals Reaction Time/seconds in acids.Magnesium Aluminum Zinc Iron Copper Prediction: Aluminum will be the most reactive because it is in group 3 which has the least amount of electrons to loose.Results: The results for reaction time of the different metals, to show which is the most reactive in acids

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No results were obtained from the control for there was no reaction.Metals Reaction Time/seconds in acids.Magnesium 10Aluminum 15Zinc 30Iron 20Copper 27 Limitations: 1.Clock and equipment may not have been used properly.Assumption: Aluminum is not the most reactive with acids, in order of the most reactive to the least reactive they are: Magnesium, Aluminum, Iron, Copper, Zinc.Conclusion: The most reactive metal was found to be Magnesium and not Aluminuim.

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