Question

Question #0e303

Answer 1

Well, I am an certainly not an ifone ninja but..........

Explanation:

The various text inputs are given [here.](https://socratic.org/help/symbols) Usually, they use hashtagCr_2O_7^(2-)hashtag to give `Cr_2O_7^(2-)`. You have got to scroll thru your fone menus to find the key that gives the hastag, and the underline etc. I agree that it is not straightforward, and I for one would not try to answer questions on a mobile.

The one I like best is `"xx"` to give `xx`............

Good luck!