# Question #0e303

Jul 3, 2017

The various text inputs are given here. Usually, they use hashtagCr_2O_7^(2-)hashtag to give $C {r}_{2} {O}_{7}^{2 -}$. 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 $\text{xx}$ to give $\times$............