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The molarities of the reactant solutions were equal in this experiment. Is this necessary, or even...

The molarities of the reactant solutions were equal in this experiment. Is this necessary, or even important, for the success of the experiment? Why or why not? What is the important variable?
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only the concentration of the reactants does not responsible for the product formation the reaction depend upon many factors like temperature pressure which called reaction conditions. For the two same experiments done one by one the yield of the product formation does not exact same but the the success of reaction or product formation takes place if the reaction conditions are same or normal. in other words we can say at room temperature and one atm pressure if A +B=C then the product C always form but yield may differ

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