Answer Happy

Question 6 Consider a voltaic cell based on the spontaneous reaction: Which of the following describes what occurs at the cathode? Al and Zn²+ are both reduced. Reduction of Al Oxidation of Al Advantages and Dis... DEF Oxidation of Zn²+ 2Al(s) +3Zn² (aq)-2A³(aq) +3Zn(s) Reduction of Zn²+
Question 7 Consider an electrochemical cell, starting at standard state conditions based on the racion Zn(s) + Cu²(aq)-Zn²(aq) + Ca(s) Which of the following should occur if the concentration of the copper) on is reduced to less than 1 M? Grand Forks Advantages and Dis. DEFM200 Ag O Q increases and nonstandard Edecreases O Q increases and nonstandard Ecel increases O Q decreases and nonstandard Ece decreases O Q decreases and nonstandard Ece increases Question 8 The standard reduction potentials for Ni2 and Ag" are -0 280 Vand -0 790 Vespectiv Calculate Ecell for a voltaic cell in which the overall reaction is Ni(s) + 2Ag (aq)-N²(ag)-2Agial O E cell = +0.519 V O E cell = +1.079 V O E cell = -0.519 V O E cell-1.079 V