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Chemical dissociation of all the reactions are Exothermic because in case of dissociation, cleavage of a bond is necessary.So naturally for breaking any bond energy is expended.So heat or energy will be liberated i.e Exothermic. Is the dissolution of salt endothermic or exothermic? Examples. Dissolution of sodium chloride (table salt)Read More →

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In an exothermic reaction, the bonds in the product have higher bond energy (stronger bonds) than the reactants. In other words, the energy of the products is lower than the energy of the reactants, hence is energetically downhill, shown in Figure 7.5. 2B. Energy is given off as reactants areRead More →

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Bond formation is alway strictly exothermic in the sense of the change of enthalpy. exothermic reaction A reaction for which the overall standard enthalpy change ΔH∘ is negative. A bond can only exist, if it needs energy to break it, i.e. the bond dissociation energy is always positive. Is formationRead More →

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A spontaneous reaction is a reaction that favors the formation of products at the conditions under which the reaction is occurring. A roaring bonfire is an example of a spontaneous reaction, since it is exothermic (there is a decrease in the energy of the system as energy is released toRead More →

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In an endothermic reaction, energy is absorbed during the reaction, and the products thus have a larger quantity of energy than the reactants. … Therefore, the reaction would not occur without some outside influence such as persistent heating. However, endothermic reactions do occur spontaneously, or naturally. Are exothermic reactions spontaneousRead More →

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1) Breaking apart the ionic compound is endothermic and requires energy. Is dissolving a base in water endothermic or exothermic? The process of dissolving an acid or a base in water is a highly endothermic reaction. Is dissolving nh4cl exothermic or endothermic? The same thing happens when ammonium chloride isRead More →

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Using chemical processes This complex ion undergoes reversible exchange of water molecules and thiocyanate ions bonded to the iron(III) resulting in a dynamic equilibrium. What happens when silver nitrate is added to iron thiocyanate? Initially, the thiocyanate reacts with the remaining silver ions to form a precipitate of silver thiocyanate.Read More →