What would be an appropriate way to attach non-essential information to the post that is only visible when needed/requested and doesn't get in way or distract the reader? My use-case is an urge to share LaTeX code which I use to generate graphics so that labels on the graphics match the default f...

I'm a novice at chemistry. I've heard that an acid needs water to show its acidic properties, that's why nitric acid needs to be associated with water to show its acidic properties: $$\ce{HNO3 + H2O <=> NO3- + H3O+}$$ $\ce{H+}$ does not exist freely and is always associated with another molecule...