Reactivity of Mg and Ca Essay

IntroductionThe aim of this practical is to determine the difference in the reactivity mingled with Mg and Ca when hot and cold wet is added.HypothesisWe think they will react in some kind of form.VariablesThe self-sustaining variable was the temperature of the water and also the quantity of metal use in the experiment and the dependent variable was the reaction.Equipment* Mg (s)* Ca (s)* Phenolphthalein* Beaker* Cold and hot water* Sandpaper* Test tubes with rackProcedure1. The Magnesium was cleaned with sandpaper.2. Two pieces of magnesium was put into two campaign tubes and two pieces of calcium was put into two interrogation tubes.3. Cold water was added into two test tubes one with calcium one with magnesium.4. Two droplets of phenolphalein were added in each of the test tubes filled with cold water to observe the change in ph.5. Water was heated over a Benson burner and poured into the two test tubes without water while observing the reactions.6. Two droplets of phenolpha lein were added in each of the test tubes filled with cold water to observe the change in ph.ObservationRelative reactivity ofCold waterHot waterMg in that respect was a minimum reaction. Fig. 1There is a bigger reaction than with the cold water. Fig. 2CaThe temperature of the water increases right away. Before we dropped the phenolphthalein the solution was white, fig.3, further after adding the phenolphthalein it turned pink, fig.4, which means that the reaction is basic.The temperature stayed the same but because the water was hot the reaction was more explosive and quicker. Before the phenolphthalein the solution was white, fig.3, and after drop the phenolphthalein it turned pink, fig.4, which means that is a basic solution.ResultsAre your results in accordance with what you have larn about reactivity?Yes because calcium has more orbits the atom has the little energy it needs to give away electrons. In this case the atom that has more orbits is the calcium that is why it rea cts more than the magnesium because calcium needs little energy to give electrons away. And the magnesium didnt react much because it needs more energy that the one that we gave it.Write the balanced equation for the reaction between Mg and H2OMg (s) + H2O (l) MgO (s) + H2 (g)UncertaintiesOther element might have been present.The hot water might have been heated more.ConclusionWe learned that both magnesium and calcium is basic solutions because of the pink tint to the color. We also learned that calcium reacted faster than magnesium.