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A Ni-Cd battery powers electrical devices through the following reaction Cd(s)  +  NiO2(s)  +  2H2O(l)    →    Cd(OH)2(s)  +  Ni(OH)2(s) Identify the species (element or ion) that is getting reduced

What is the concentration of H+(aq) in a solution in which [OH-] is 0.010 M

Identify the reducing agent in the following reaction Ag+(aq)   +  Al(s)  →  3Ag(s)  +  Al3+(aq)

It is not appropriate for someone from the funeral home to remain at the cemetery until the vault cover has been placed on the vault.

In the diagram shown, if A was Pb metal and B was Ca metal, identify the element that gets reduced  ? Use: Pb2+(aq)  +  2e-  = Pb(s)       Ecell = -0.13 V Ca2+(aq)  +  2e-  = Ca(s)     Ecell= -2.87 V Question 22.docx Choose (A) or (B) 

What is the pH of a 0.028 M solution of NaOH? (pH + pOH = 14)

In the diagram shown, if A was Pb metal and B was Ca metal, what would be the cell potential of this electrochemical cell? Use: Pb2+(aq)  +  2e-  = Pb(s)       Ecell = -0.13 V Ca2+(aq)  +  2e-  = Ca(s)     Ecell= -2.87 V Question 22.docx

In the following diagram, if A was Cu metal and B was Pb metal, which way would the electrons move through the wire? Please open the attached file Question 35.docx Choose (A) or (B)

The Ka x Kb for a conjugate acid – base pair is

Identify the most acidic hydrogen in the following molecule. Please open the attached file Question-5.docx