Question 1
Given the following reaction in acidic media:
Fe2+ + Cr2O72–→ Fe3+ + Cr3+
answer the following question: The coefficient for water in the balanced reaction is:
◦
1◦
3◦
5◦
7◦
None of these are correct.Question 2
Given:
2H+(aq) + 2e–→ H2(g); 0.00 V
Na+(aq) + e–→ Na(s); –2.71 V
F2(g) + 2e–→ 2F–(aq); 2.87 V
Al3+(aq) + 3e–→ Al(s); –1.66 V
Pb2+(aq) + 2e–→ Pb(s); –0.13 V
Under standard-state conditions, which is the strongest reducing agent?
◦
H+
◦
Na◦
F–
◦
Al3+
◦
Pb2+
