Question

entering more complex expressions
to enter an ion such as $so_{4}^{2-}$ use a subscript followed by a superscript. in general, use the stacked super/subscript $\frac{a}{b}$ only for entering an isotope. do not use it
part b
enter the symbol of a sodium ion, $na^{+}$, followed by the formula of a sulfate ion, $so_{4}^{2-}$. separate the ions with a comma only—spaces are not allowed
express your answers as ions separated by a comma.
part c

Explanation:

Step1: Enter sodium ion

For the sodium ion \(Na^+\), we just write \(Na^+\) as per the ion symbol.

Step2: Enter sulfate ion

For the sulfate ion \(SO_4^{2 - }\), we write \(SO_4^{2 - }\) as per the ion formula.

Step3: Combine with comma

Separate the two ions with a comma.

Answer:

\(Na^+,SO_4^{2 - }\)