A5.00 kilogram block slides along a horizontal, frictionless surface at 10.0 meters per second. for 4.00 seconds. the magnitude of the blocks momentum is ?
a)200 kg m/s
b)50.0 kg m/s
c)20.0 kg m/s
d)12.5 kg m/s

The standard cell potential (e°cell) for the reaction below is +0.63 v. the cell potential for this reaction is when the concentration of zn2+ = 1.0 m and the concentration of pb2+ = 2.0 x 10-4 m. pb2+(aq) + zn(s) > zn2+(aq) + pb(s)