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New York State Chemistry Regents June 2008
Chemistry Regents June 2008 - Question 26 PDF Print E-mail
Written by The Chemistry Wizard   
chemjun08q (26)
(1) is the correct answer.  Reduction means the gain of an electron, which removes the positive charge from potassium (because an electron is negatively charged).
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Chemistry Regents June 2008 - Question 74 PDF Print E-mail
Written by The Chemistry Wizard   

chemjun08q (74)

All of the coefficients are 1, with the exception of H20, which requires 2 molecules to balance the equation.

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Chemistry Regents June 2008 - Question 75 PDF Print E-mail
Written by The Chemistry Wizard   

chemjun08q (75)

The anode (Cd) will change from 0 to +2, because as a product, it is bonded with 2 (OH)’s, which each carry a charge of -1.

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Chemistry Regents June 2008 - Question 76 PDF Print E-mail
Written by The Chemistry Wizard   

chemjun08q (76)

On Table J, the activity series, which measures reactivity of metals and nonmetals, Cd would be about Ni because it is more reactive.

Chemistry Rege

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