MnO2(s) + 4HCl(aq) →MnCl2(aq) + Cl2(g) + H20
How many grams of HCl are required to produce 11.2 liters of Cl? The reaction occurs in the presence of excess HCl and at STP.
A)20.09
B)36.5 g
C)48.5 g
D)73.0 g

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How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next

What is a difference between a mixture of elements and a mixture of compounds