In the redox reaction in basic solution zn--> zn(oh)4+h2 i know that the first half reaction is 4h20+zn--> zn(oh)4 +4h+e but the second one is either 2e+> h2+2oh (which is the answer given on the worksheet) or 2e+2h--> h2 i think both leads to the same answer= 2oh+zn+2h20--> zn(oh)4 +h2 but i'm not sure if i should add oh instead of h protons since it is a reaction in basic solution.
someone can me?

What is the mass of sodium in 3 moles of sodium chloride

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.