Cation-Anion Combination: Mg2+ & O2- = MgO

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In summary, magnesium cations have a 2+ charge and oxide anions have a 2- charge, resulting in the formula MgO for the ionic compound.
  • #1
rachelmaddiee
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Homework Statement
I need help with a question
Relevant Equations
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Magnesium cations (Mg2+)
Oxide anions (O 2-)
A magnesium ion has a 2+ charge and the oxygen atom has a 2- charge. The formula for the ionic compound is MgO.
Would this be correct? Here is my work**
DF5C2BF5-2934-4345-A492-6CEC83D9E2E2.jpeg
 
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  • #2
rachelmaddiee said:
Homework Statement:: I need help with a question
Homework Equations:: N/A

Here is my work**
Doesn't show up !
 
  • #3
Magnesium cations (Mg2+)
Oxide anions (O 2-)
A magnesium ion has a 2+ charge and the oxygen atom has a 2- charge. The formula for the ionic compound is MgO.
 
  • #4
rachelmaddiee said:
A magnesium ion has a 2+ charge and the oxygen atom has a 2- charge. The formula for the ionic compound is MgO.

Yes, that's correct.
 
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1. What is a cation?

A cation is a positively charged ion, meaning it has lost one or more electrons and has an overall positive charge. It is typically formed by metals.

2. What is an anion?

An anion is a negatively charged ion, meaning it has gained one or more electrons and has an overall negative charge. It is typically formed by non-metals.

3. How do cations and anions combine to form compounds?

Cations and anions are attracted to each other due to their opposite charges. They combine through an ionic bond, where the cation loses its outermost electrons to the anion, forming a stable compound.

4. Why is the combination of Mg2+ and O2- significant?

Mg2+ and O2- are significant because they form a stable compound, magnesium oxide (MgO), which has many practical uses, such as in the production of ceramics, glass, and cement.

5. What is the chemical formula for magnesium oxide?

The chemical formula for magnesium oxide is MgO. This indicates that there is one magnesium ion (Mg2+) and one oxygen ion (O2-) in the compound.

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