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The pH at the equivalence point of the titration of a strong acid with a strong based is 7.0. However, the pH at the equivalence point of a titration of weak acid with a strong based is above 7.0. Why? Please give lots of details
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For each of the following reactions identify the oxidizing agent and the reducing agent. 2Na(aq)+2H2O(l)→2NaOH(aq)+H2(g) C(s)+O2(g)→CO2(g) 2MnO-4(aq)+5SO2(g)+2H2O(l)→2Mn2+(aq)+5SO2-4(aq)+4H+(aq)
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A mixture consisting of powdered granite and sugar. Water is added and the mixture is stirred then filtered. What is presented on the filter paper? What is present in the filtrate(the liquid obtained in the filtration)? ...
Give an example of when heat is released from water as it undergoes a change of phase.
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