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

Which two surfaces combined together give the higher voltage when controverting with acidIntroductionIn this investigation we bequeath arise out which two metals combinedtogether give the higher voltage when reacting with acid. The metalsused will be Aluminium Zinc Iron dismiss Lead Nickel CopperTo make a addression on what metals will be the ones that give thehighest voltage when combined together you need to find out if theposition in which the metals are at in the reactivity serial wouldmake a difference, and if it does, how? You also need to find out howthe metals react with acids.We know that the higher the metal is in the reactivity series, thestronger it will react with an acid.TheoryBatteries exhaust chemicals inside to store energy. When two differentmetals that are affiliated by a wire are placed into an acid, apotential difference (voltage) is produced. This occurs because themetals react with the acid forming Hydrogen acid, a metal salt resolving and an electric charge. 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 SandpaperMethod dupe 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 every 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 voltage. I think this becaus e voltage is alsocalled potential difference, so this shows that there is more powerwhen the difference between the metals is larger. This means that thevoltage in the metal which is lower 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.