In the oxidation-reduction reaction h2o + 2mno2 + zn → mn2o3 + zn(oh)2, the half-reaction of the zinc is? a. zn(oh)2 → zn + 2e- b. zn(oh)2 → zn + 2oh- c. zn + 2oh- → zn(oh)2 + 2e- d. zn + 2oh- + 2e- → zn(oh)2

D

Explanation:

2MnO2 + H2O => Mn2O3 + 2OH is the correct balanced equation. All others are missing or have incorrect coefficients.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.