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    General Chemistry Principles
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    Exam 22: Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen
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    Write a Balanced Half Equation for the Following Couple
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Write a Balanced Half Equation for the Following Couple

Question 15

Question 15

Multiple Choice

Write a balanced half equation for the following couple:
Write a balanced half equation for the following couple:    S(s) (acidic)  A) SO<sub>4</sub><sup>2-</sup>(aq) <sup> </sup>+ 2 H<sup>+</sup>(aq) <sup> </sup>+ 2 e<sup>-</sup> → S(s) + H<sub>2</sub>O(l)  B) SO<sub>4</sub><sup>2-</sup>(aq) <sup> </sup>+ H<sub>2</sub>O(l) + 4e<sup>-</sup> → S(s) + 2 H<sup>+</sup>(aq) <sup> </sup> C) SO<sub>4</sub><sup>2-</sup>(aq) <sup> </sup>+ 2 H<sup>+</sup>(aq) <sup> </sup>+ 2 e<sup>-</sup> → S(s) + H<sub>2</sub>SO<sub>4</sub>(aq) <sup> </sup> D) SO<sub>4</sub><sup>2-</sup>(aq) <sup> </sup>+ 8 H<sup>+</sup>(aq) <sup> </sup>+ 6 e<sup>-</sup> → S(s) + 4 H<sub>2</sub>O(l)  E) SO<sub>4</sub><sup>2-</sup>(aq) <sup> </sup>+ 8 H<sup>+</sup>(aq) <sup> </sup>→ S(s) + 4 H<sub>2</sub>O(l) + 6 e<sup>- </sup> S(s) (acidic)


A) SO42-(aq) + 2 H+(aq) + 2 e- → S(s) + H2O(l)
B) SO42-(aq) + H2O(l) + 4e- → S(s) + 2 H+(aq)
C) SO42-(aq) + 2 H+(aq) + 2 e- → S(s) + H2SO4(aq)
D) SO42-(aq) + 8 H+(aq) + 6 e- → S(s) + 4 H2O(l)
E) SO42-(aq) + 8 H+(aq) → S(s) + 4 H2O(l) + 6 e-

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