Choose the atom or ion that is larger. Select one: a. Br-1 b. Br
1 answer:
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Answer:
The anode made of the impure copper
The cathode made of pure copper
The electrolyte of copper (II) sulfate CuSO₄ solution
The silver impurities at the anode due to their high tendency of accepting electrons and being a stronger reducing agent than either copper or zinc will remain relatively in place and relatively stable and will not actively take part in the oxidation reaction taking place at the anode
The zinc impurities will be the first element of the three metals to give up electrons and go into the solution as zinc ions due to their high tendency to loan out two electrons and become oxidized into Zn²⁺ ions
The drawing of the electrolytic cell created with Microsoft Visio is attached
Explanation:
Answer: The average atomic mass of oxygen is 15.999 amu
Explanation:
Mass of isotope O-16 = 15.995 amu
% abundance of isotope O-16= 99.759 % =
Mass of isotope O-17 = 16.995 amu
% abundance of isotope O-17 = 0.037% =
Mass of isotope O-18 = 17.999 amu
% abundance of isotope O-18 = 0.204% =
Formula used for average atomic mass of an element :
Thus the average atomic mass of oxygen is 15.999 amu