An electron is accelerated in a cathode ray tube and moves at a velocity of 3.0*10^6 km/hour. Calculate the kinetic energy of the electron. You can find the mass of an electron on the Table of Constants in the handouts. Express your answer in units of Joules (J)

A) The Al(s)

B) The Ni2+(aq)

C) The Cu2+

D) The Zn(s)

Explanation:

A) The Al(s) is the species that is being oxidized given that it is the one with the highest oxidation potential in the solution.

B) The Ni2+(aq) is the species that is being reduced given that it is the one with the highest reduction potential in the beaker.

C) The oxidizing agent is the substance that is being reduced or you can say the one that has the potential to oxidite other substance. In this case the agent is Cu2+ given that it reduces itself while oxidates the lead.

D) The metal added needs to have a reduction potential lower than the H+ in order to form the gas. The only listed that meets the requirement is the Zn(s).