Given the task definition and input, reply with output. You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.

Acides are H+ Ions\nBaces are OH- Ions\n\nheres a graph http://yennadon.sd42.ca/online/science/chemistry6/images/acidsbases.gif

Most acids form ions in solution by ________, and most bases form ions in solution by_______?.?