No of valence electrons
In writing the Lewis Structure, when we do not have to worry about electrons distribution in each atom alone, and when we have to assign to each atom its particular no of valence electrons?
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How much heat will be released when 6.44 grams of sulfer reacts with excess oxygen according to the following equation? Is this reaction endthermic or exothermic? 2S+3O2--> 2SO3 H= -791.4kj
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A 25.0 mL sample of 0.100 M lactic acid (HC3H5O3, pKa = 3.86) is titrated with 0.100 M NaOH solution. Calculate the pH after the addition of the following amounts of NaOH.
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