Which equation is a half reaction that describes the reduction that is taking place

What is the empirical formula for c4h8o2

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer