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PBAU Sum of Stoichiometric Coefficients in Balanced Chemical Equation Questions

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          What is the sum of all the stoichiometric coefficients in the  balanced chemical equation for the reaction of magnesium with gold (III)  nitrate? Gold solid and magnesium nitrate are produced.       

                   Group of answer choices                                          9             

                       5       

                       10       

                       6       

                       8       

                       4       

                       7       

Determine the mass of the product from the following data.                  Mass Aluminum Foil (g)            2.5415               Mass Filter Paper (g)            0.2777               Mass Filter Paper + Product (g)            35.6484               Mass Product (g)                 

                

                  Group of answer choices

                

                

    

                 

      

      

        35.3708 g 

      

    

    

                 

      

      

        35.3705 g 

      

    

    

                 

      

      

        35.3707 g 

      

    

    

                 

      

      

        35.3709 g 

      

    

    

                 

      

      

        35.3706 g 

      

    

          14.387 g of aluminum (26.982 g/mol) are reacted with 127.657 g

 of copper(II) sulfate (159.609 g/mol)? Select the best answer?

      

                

                  Group of answer choices

                

                

    

                 

      

      

        copper is the limiting reactant

      

    

    

                 

      

      

        aluminum is the limiting reactant

      

    

    

                 

      

      

        copper & aluminum sulfate are the limiting reactants

      

    

    

                 

      

      

        aluminum & copper(II) sulfate are the limiting reactants

      

    

    

                 

      

      

        aluminum sulfate is the limiting reactant

      

    

    

                 

      

      

        copper(II) sulfate is the limiting reactant

      

    

              

              

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