An unknown solution has a ph of 2. how would you classify this solution?

basic

neutral

there is not enough information to answer the question.

acidic

List four observations that indicate that a chemical reaction may be taking place

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

Word equation for k(s) +h2o(l) yield koh (aq) + h2