Determining the elemental symbols

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You have to be careful about pouring drano down your pipes since it is mainly hydrochloric acid--you can't do it if they are made of aluminum because it will dissolve them! You can't acid clean your aluminum auto parts for the same reasons: 2 Al + 6 HCl → 2 AlCl3 + 3H2. If you wanted to make 10.0 moles of hydrogen gas, how many many moles of Al would you need? NOTE: All numbers located immediately after elemental symbols should be considered subscripts.

A. 3.33 moles

B. 6.67 moles

C. 2.00 moles

D. 3.00 moles

E. none of the above

Reference no: EM131183518

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