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Balancing Equation Please Help?

Hi

I have the problem: Solid chromium III oxide reacts with chlorine gas and solid carbon to form solid chromium III chloride and gaseous carbon monoxide. Write a balanced equation.

I think the formula _Cr203 + _ Cl4C --> _CrCl3 + _CO is the correct unbalanced formula but am not 100% sure.. and I can't seem to balance it.

Can someone please help me?! Xo Marina

Answers (3)

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mjvymexbaa profile image
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ozhujlqbaa profile image

The correct balanced equation would be:

Cr2O3+3Cl2+3C--->3CrCl3+3CO

Whenever it states that one compound reacts with one element and another element, it means they are two different reactants.

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1uyomt0xaa profile image

Cr2O3 + C + Cl2 --------> CrCl3 + CO (balance Cr)

Cr2O3 + C + Cl2 --------> 2 CrCl3 + CO (balance Cl)

Cr2O3 + C + 3 Cl2 --------> 2 CrCl3 + CO (balance O)

Cr2O3 + C + 3 Cl2 --------> 2 CrCl3 + 3 CO Balance C)

Cr2O3 + 3 C + 3 Cl2 --------> 2 CrCl3 + 3 CO (done)