When using different metals Essay Example for Free

When using different metals EssayAn example of this is when an iron nail is put in a copper sulfate solution. A rendering reaction only occurs when a metal reacts with an acid. This is an exoergic reaction. Exothermic means that the energy is going out of the reaction. Chemical reaction where the energy content of the products is little than that of the reactants heat is given out from the system. In an exothermic reaction, heat energy is given off to the milieu so the product molecules have lower heat content than the reactants. This is like taking a plastered sponge and squeezing it into a funnel the sponge ends up with lower water content than in the lead the exothermic reaction. The amount of water which is squeezed into the funnel and collected is a good concrete way to escort the heat of reaction. Apparatus Measuring Cylinder Thermometer Stop clock Balancing Scale Copper sulphate solution Beaker Zinc organise Aluminium Magnesium Iron Method == Collect all take equi pment in a tray. == Put 50 cubic cm of copper sulphate solution into a beaker make sure it is 50 by using a measuring cylinder. == Measure temperature of solution at the begging by using a thermometer.== Measure 2 grams of metals with copper sulphate solution. == Shut the beaker with a lid made out of cardboard for the thermometer to enter. == Measure temperature of substance every 30 seconds. == Repeat for 8 mins. == Repeat this routine for the other metals. Prediction I predict that magnesium will displace just about of the other metals it will react with. This is because magnesium is the highest metal we are using in the reactivity serial publication and as such will displace more.Results Iron 1 2 3 Average graph Analysis From this investigations results I can see that Magnesium was the most reactive metal out of them, and Lead was one of the metals that reacted the least, along with Zinc.Magnesium emitted the most heat out of them all. It took several minutes for magnesium to appreciation its highest temperature on the table. My prediction was correct as I predicted that Magnesium would be the metal that emitted the most heat, as it was the more reactive than the other metals. Evaluation In this experiment I investigated how much heat displacement reactions give out. We used plastic beakers but used cardboard lids, which may have altered the results of the experiment.If I were to do the alike(p) experiment over again I would use plastic lids and see if the results were the analogous or if they differed. We also hand stirred the solutions, so that could have changed the results. I could improve the experiment if the same person stirred it then they would know roughly at what speed they stirred the solution. Rina Bhudia Science probe 10 B3 Mrs Davis Show preview only The above preview is unformatted text This student written function of work is one of many that can be found in our GCSE Patterns of Behaviour section.