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Question

38<br/>How many grams of Cl 2 can be prepared from the reaction of

16.0 g of MnO 2 and 30.0 g of HCl according to the following chemical equation?  MnO 2 + 4HCl → MnCl 2 + Cl 2 + 2H 2O

-13.0 g
-0.82 g
-58.4 g
-14.6 g
-5.8 g

50
A molecule with 3 single bonds (and any number of lone pairs) could have which of the following molecular geometries?  

-I. Trigonal planar 
-II. Trigonal pyramidal 
-III. Seesaw 
-IV. T-shaped
-I, II, and IVI and III and IIIII and IVII and III

56
What mass of Na 2SO 4 is needed to prepare 350. mL of a solution having a sodium ion concentration of 0.125 M?

-6.21 g
-12.4 g
-24.9 g
-3.11 g
-8.88 g

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Subject: Chemistry, Science

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