Saturday
February 28, 2015

Homework Help: chemistry

Posted by Kate on Friday, March 7, 2008 at 10:43pm.

I have two questions.

1. How do I predict the formula of ionic compounds when one is a polyatomic ion? Example: Al (+3) and SO4(-2).

2. How would I obtain the charge of Hg in the formula HgCl2?

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