Redox Reaction Notes

Chapter 18 Notes The Re body process of Metals When an agitate cart through is left in copper sulfate stem a counterbalanceion come to passs, the compress removes the copper from solution. This is a displacement reaction. The iron is more thermolabile than the copper. We know from experience that different metals construct varying abilities to react with other substances. Eg. Metals corporation be set apart in a responsiveness list which is called the responsiveness serial publication of metals or the activity series. Table 18.1 Reactivity of metals and the periodic table. The metals in groups I and II atomic number 18 precise reactive. Metals tend to act as reductants. The reactivity of metals tends to decrease crossways the periodic table and down the group. You can use the reactivity series to predict redox reactions. electrochemical CELLS Redox reactions that occur spontaneously can be utilize to produce vigor. The efficacy can be released as heat, light, galvanising energy or sound depending on the set-up of the displacement reaction. Eg. Iron nail in copper sulfate solution produces heat energy. If the reactions are unaffectionate the electrons can be forced to move through wires to require an electrical current. This is the set-up in batteries. Such set-ups are called electrochemical CELLS. Their berth is to be an energy converter, changing chemical energy into electrical energy.

A simple electrochemical cell consists of: devil half-cells, containing two electrodes (anode and cathode) and two electrolytes A conducting wire A salt bridge, containing some(prenominal) other elec trolyte. In half-cells the more reactive ! metal lead of all time give its electrons to the ions of the less(prenominal) reactive metal. The ions of the less reactive metal will gain electrons from the other. THE ELECTRODE AT WHICH oxidation OCCURS IS CALLED THE ANODE. THE ELECTRODE AT WHICH reduction OCCURS IS CALLED THE CATHODE. Key Knowledge questions. Competition for Electrons. From the reactivity series of metals the high the metal is on the list,...If you want to commence a sound essay, order it on our website: OrderEssay.net

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