Why is water considered a polar molecule? a. the molecule has no overall charge. b. the oxygen and hydrogen atoms share electrons equally. c. the atoms in the molecule have partial charges. d. the molecule can only attract positive charges. i personally deduct that it is c but i would love some other opinions! : )

An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m. part a how much work is required to bring an additional electron from infinity to the origin? express your answer with the appropriate units. part b if, instead of the second electron coming in from infinity, it is initially at x = + 20.00 m on the axis and is given an initial velocity of 100.0 m/s toward the origin, does it reach the origin? part c how close to the origin does it come?