🤓 Based on our data, we think this question is relevant for Professor Mammana's class at UDAYTON.
What we have is a multiple question.
First, we are asked to determine the charge of zirconium (Zr) in zirconium oxide (ZrO2).
Second, we are asked to determine the number of Iron (II) ions needed to form iron (II) oxide.
What is the ionic charge on the zirconium ion in the ionic compound zirconium oxide, ZrO2?
How many iron(II) ions combine with oxygen to form Iron(II) oxide?