Metal Displacement This is a type of redox reaction, Metal displacement is directly related to each individual metals reactivity. Basically it is the higher reactivity metal that pushes the other less reactive metal out of its salt solution.
Metal Displacement • The stronger the reductant will be the metal that pushes • Hence stronger reactivity stronger reductant which then concludes it is the metal that undergoes oxidation. • NOTE THE STRONGER METAL MUST BE IN SOLID FORM IN ORDER FOR THE DISPLACEMENT TO OCURR • Why? Because oxidation involves the loss of electrons therefore you cannot loose electrons in a salt solution due to them already being transferred (ionic bonding)
Predicting reactions • Your electrochemical series is your best friend for redox reactions!!!! • You must use this table in order to predict which will be the oxidant and reductant
Galvanic Cells • Two half cells, one represents oxidation and the other represents reduction • http: //withfriendship. com/user/vinus/galvanic -cell. php • http: //wps. prenhall. com/wps/media/objects/ 4680/4792445/ch 18_01. htm • http: //www. teachersdomain. org/asset/rr 10_v id_voltcells/
Galvanic Cells • Construct a Galvanic cell diagram for copper in copper sulphate and iron in iron chloride (label the diagram appropriately) • Show oxidation and reduction reactions • Show equations for half and full.
Handout sheet We love Chemistry!!! • And we especially love it when we have work to do!!!! • Complete handout sheet.