Changes

== Chemistry ==

== Chemistry ==

In chemistry, a piece of litmus paper is placed in a solution.  Chemical reactions with[[acids]] cause it to turn red, while reactions with [[alkalines]] cause it to turn blue.

In chemistry, a piece of [[litmus paper]] is placed in a solution.  [[Chemical]] reactions with acids cause it to turn red, while reactions with [[alkaline]]s cause it to turn blue.

==Politics==

==Politics==

==Example==

==Example==

"Where do you stand on Roe v. Wade" is a typical litmus test on the issue of [[abortion]].

"Where do you stand on [[Roe v. Wade]]" is a typical litmus test on the issue of [[abortion]].