You\'re being asked before you start to answer. The test contains 3 pages plus s

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You're being asked before you start to answer. The test contains 3 pages plus supplemental data sheets; be sure you have a complete test. Watch your units. Cell phone use Is not allowed. Turn them off; put them away. Alt spontaneous processes have a (positive, negative, zero) value for delta G. The Second Law of Thermodynamics deals with ____ What is the oxidation number of I in lO_4? 8 H' + MnO_4 + 5 e rightarrow^+2 + 4H_2 O is a (n) (oxidation/reduction)half reaction. The cell potential of a voltaic cell must be _______ The number of electron pairs that are accepted by the central metal in a coordination complex defines __________ its ________ Name Ba_2 (Fe (CN)_6 _______ Nuclear chemistry (radiochemistry) phenomena originate in the _________ of the atom. An beta (beta) particle has the mass and charge properties of a(n) ________ C-14 has a half-life of 5730 years while H-3 (tritium) has a half-life of 12.3 years. Which of these two isotopes is more 'active'? Justify your conclusion._________ Name a process that results in an entropy increase. Explain how this process increases entropy in language your grandmother would understand.

Explanation / Answer

1. delta G is negative for spontaneous reactions

2. Second law of thermodynamics deals with entropy change of the system.

3.

oxidation state of I= x and Oxidation state of O = -2, so, overall OS = -1 = x + 4*-2

-1 = x -8

x = 8-1 = 7.

Oxidation numbe of I = 7

4. MnO4- + 8 H+ + 5 e- Mn2+ + 4 H2O is a reduction half reaction as OS are decreased.

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