Which two metals combined together give the higher voltage when reacting with acid :: GCSE Chemistry Coursework Investigation

Which two alloys combined unitedly add the high voltage when reacting with stingingIntroductionIn this investigation we allow for find out which two admixtures combinedtogether give the high voltage when reacting with acid. The metalsused allow be Aluminium Zinc push Tin Lead Nickel CopperTo make a vaticination on what metals will be the ones that give thehighest voltage when combined together you regard to find out if theposition in which the metals are at in the reactivity series wouldmake a difference, and if it does, how? You also need to find out howthe metals react with acids.We know that the higher(prenominal) the metal is in the reactivity series, thestronger it will react with an acid.TheoryBatteries have chemicals inside to barge in energy. When two differentmetals that are connected by a telegraph are placed into an acid, apotential difference (voltage) is produced. This occurs because themetals react with the acid forming Hydrogen acid, a metal salt sourc e and an electric steering. The charge flows from the mostreactive metal to the least reactive metal.EquipmentThe equipment used will be Acids Metals Wires Voltmeters Beakers Measuring cylinders Stop watches SandpaperMethodCollect all the equipment and place it as it is shown on the diagramabove. Choose around 10 pairs of metals and place one pair in thebeaker, and connect them both with a wire. Put them in for a fewseconds, and voltage will be produced when the two metals react withthe acid forming hydrogen, a metal salt solution and an electriccharge. This charge will flow from the least reactive metal to themost reactive metal. Measure the voltage with the voltmeter and writeit down. Do this for both pair of metal you have chosen, and thenfind out which ones are the most reactive and which ones are theleast.PredictionI predict that the highest metal in the reactivity series and thelowest metal in the reactivity series from the metals we are usingwill produce the highest voltag e. I recollect this because voltage is alsocalled potential difference, so this shows that there is more violencewhen the difference between the metals is larger. This means that thevoltage in the metal which is tear down in the reactivity series must havea higher voltage to the metal that is most reactive to make myprediction correct. I think that the highest the difference = thehigher the voltage.I also predict that changing the acid will change the ending result. Ithink that the stronger the acid, the higher the voltage.