What are reactions to displacement?

The shift reaction is one in which the element or group is relocated from a chemical compound by another element or group. In responses with one displacement, the more reactive element will push out, the less reactive. In responses with double relocation, which most often take place among the aqueous solutions of ionic compounds, positively charged cations and negatively charged anions. The reaction generally takes place because one of the products is insoluble and is precipitated as a solid or has evolved like gas, or because reactants are acid and base that will always produce salt and water. For example, iron will push the copper out of the copper sulfate solution because it is more reactive: Fe + Cuso _{4 -> CU + FESO 4 . This type of reaction can be used for metal plating. For example, if zinc is added to hydrochloric acid, the reaction will produce chloride and hydrogen zinc, because the zinc is more reactive than hydrogen: Zn + 2HCl -> zn + H2. Metals that are less reactive nHydrogen - for example copper, lead, silver and gold - do not get out of acid.}

An example of a response to a shift between solids is a well -known termit reaction in which a powder aluminum is used to push the metal from the compound, usually oxide. In its most common form, iron is produced by the reaction of aluminum with oxide III III: Fe 2 3 + 2al -> 2Fe + al _{2 3 . So much heat develops that iron is released like a white hot liquid; Sometimes it is used as a welding method together Broken Rail Tracks.}

The reactions of the shift between non -acts are also common. An example is the shift of iodine from iodide salt chlorine. Chlorine is more reactive than iodine, so if the chlorine gas is bubbled in a sodium solution, pushes iodine: 2NAI + cl _{2 -> 2NACL + i 2 . This method is used for industrial production of iodine.}

by example of double shift JE reaction of sulfate solutions and sodium sulfate. When they are mixed, they respond to the production of sodium chloride and Barria sulphate. The latter is insoluble and forms a precipitate: Bacl _{2 + on 2 so 4 -> baso 4 + 2NACL. Barria chloride solution can therefore be used to test sulphate ions.}

Responses

Acid-Base are another form of double shift. These are also known as neutralizing reactions. For example, hydrochloric and sodium hydroxide will respond to the production of sodium and water chloride: HC1 + NaOH -> NaCl + H ₂