If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Solubility equilibria questions

Problem

Which of the following Lewis dot structures of polyatomic ions has or have an overall charge of -2?
I, point
I, I, point
I, I, I, point
I, V, point
Choose 1 answer:
Stuck?
Stuck?