Help With Balancing CO2+ Mg -> MgC + O2

[shikagami]

I don't know if I solved this problem correctly.

Balance the equation:

CO2+ Mg -> MgC + O2

Is this the right end result and can someone help me figure out the state of matter for each.

 

[Moonbear]

It's hard to know if it's the right end result if we don't see what you started with. Please show/explain your reasoning first.

 

[shikagami]

well... the problem only gave me the first part of the equation which was the CO2 + Mg. This is the chemical process that occurs when dry ice is mixed with burning Magnesium pellets, which creates this fire work type of reaction. I figured that the magnesium and carbon will combine and release oxygen.

 

[shikagami]

The actual question is Mg reacts with CO2 (Carbon dioxide) to give a white solid and a black solid. Provide the balanced equation for this reaction.

 

[stmoe]

http://www.chem.umn.edu/services/lecturedemo/info/Magnesium_and_dry_ice.html

Is it really as simple as carbon dioxide and magnesium?

 

[shikagami]

I didn't think that Magnesium would combine with oxygen... thnx stmoe.

 

[Gokul43201]

I don't know if I solved this problem correctly.

Balance the equation:

CO2+ Mg -> MgC + O2

Is this the right end result and can someone help me figure out the state of matter for each.

Your answer can not be correct because :

1. The existence of something like MgC would require Mg to have a +4 oxidation state or C to have a +2 oxidation state. Both are extremely rare.

2. You want two solid products. You have one solid and one gas.

Anyway, the correct answer is posted by stmoe.

 

[Gokul43201]

I didn't think that Magnesium would combine with oxygen... thnx stmoe.

Well, what do you think happens when a magnesium ribbon burns in air ? It is among the most spectacular and violent oxidations you'll ever see !