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The formula for calcium oxide is $\mathrm{CaO}$. What are the formulas for magnesium oxide and strontium oxide?

Magnesium and strontium are also alkaline earth metals. Thus, their charge must be the same $(+2) . \mathrm{MgO}$ and $\mathrm{SrO}$

Chemistry 101

Chapter 2

Atoms, Molecules, and Ions

Atoms, Molecules and Ions

University of Central Florida

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Lectures

01:19

The formula for calcium ox…

00:23

Predict the chemical formu…

01:21

The ionic compound calcium…

The formulas for the oxide…

01:24

Write formulas for ionic c…

00:59

Write the formula for each…

01:18

a Calcium oxide is prepar…

01:07

Write the chemical formula…

12:01

Write formulas for each of…

03:21

Write formulas for the fol…

Give the formulas of the …

The goal of the problem is so determined the formulas for magnesium oxide and strong tin oxide. In order to understand how to do this problem, let's take a look at calcium oxide as an example. Kasam oxide consists of two ions. It has the C A two plus ion, and the CIA gets a to post charge because it's an uncle and Earth metal and has an O to minus I on which represents oxygen, which has eight to minus charge. When you put these ions together, we know that the calcium has a two plus charge and the oxygen has a to minus charge. So when these air put together, you need to cross their charges. So the charge for the calcium would go to the oxygen, and the charge for the oxygen would go to the calcium. When you're writing the formula, you could technically right as C H. 202 since the charges balance that way. But since they both have the same charger, too, you can simplify it to see as we were in a buff next for magnesium oxide. It's a similar process, so magnesium is also agreed to metal, so it has a two plus charge and the oxide has the Tu minus charge. Therefore, just like ch o we get em geo for magnesium oxide. Next four, the strong team oxide. The strong team is also a group to metal. So we get S r two plus for strong Teoh in a note to minus for oxide. Then when we put it together, we get an S R O, which is similar to a C h o M g.

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