![]() ![]() Now repeat steps 1-7 for the next three metals (Cu, Zn and Ag). An Activity Series is provided at the end of the Background section. An Activity Series of elements is often used to determine if (A) will displace (B) in a single displacement reaction. If it is a gas, it will appear as bubbles. (Hint: these are single replacement reactions)Ĩ. If the new element (B)is a metal, it will appear as a metallic deposit. The more active metal wants to be social and have a friend. In table 2, write the balanced equations for the reactions that occured. Note: The Activity Series will be given to you on quizzes and exams Most active (closest to Li) wants to be a cation (+ charged) in a compound with a buddy such as LiCl or LiNO 3. In data table 1, if a reaction occurred, write "reaction." If no reaction occurs write "no reaction".ħ. Click on each beaker to see the "molecular scale"Ħ. /classroom-resources/metals-in-aqueous-solutions-simulationĥ. ![]() Click on the link below or copy and paste it into your browser. To practice using the activity series chart in your reference tableġ. To practice writing single replacement reactions Based on Equation 1, aluminum is more active than copper and therefore replaces the copper (this is called a single replacement reaction). The more active metal forms a new compound containing metal cations. (The most reactive metal is the one that reacted with the most solutions, while the least reactive metal is the one that reacted with the fewest solutions). In general, the activity of a metal may be defined as follows:Īn active metal will react with a compound of a less active metal, which is converted to its “free element” form. The activity series is essentially a tool used to predict which elements can replace each other based on their reactivities. A more active metal always replaces the ion of a less active metal. Which of the metals reacted with the fewest solutions 3. Single replacement reactions will occur spontaneously in one direction only (compare Equations 1 and 2). Which of the metals reacted with the most solutions 2. The reaction of aluminum with copper (II) chloride (Equation 1) is classified as a single replacement reaction – aluminum reacts with and “replaces” copper ions in copper (II) chloride. Consider equation 1 and 2 below:ĢAl (s) + 3CuCl 2(aq) -> 2AlCl 3(aq) + 3Cu (s) (Equation 1)Ĭu (s) + AlCl 3(aq) -> No Reaction (Equation 2) The students will actually see more reactive metals going into solution while less reactive metals plate out of solution. To determine the activity of metals you can compare the reactions of metals with different How can we determine the relative reactivity of different metals? Gold is a highly valuable jewelry metal because it is essentially unreactive. The purpose of the lab is to investigate the. Copper is used in electrical wiring because it conducts electricity extremely well and resists corrosion better than many metals. Your report should justify the experiments you perform and should explain how you reached your conclusions. Although iron is the most common metal used in manufacturing, it must be protected againstĬorrosion because rusts easily. The usefulness of metals in structural and other applications depends on their physical and chemical
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