Which of the following reactions represent the change of copper ore to copper metal? A or D right?

A. 2CuS + 3O2 + C → 2SO2 + 2Cu + CO2
B. 2CuS + 3O2 + C → 2SO2 + 2Cu + CO
C. 2CuS + 3O2 + CO2 → 2SO2 + 2Cu
D. 2CuS + 6O2 + C → 2SO2 + 2Cu + CO2

Question

Which of the following reactions represent the change of copper ore to copper metal? A or D right?

 		A.	2CuS + 3O2 + C → 2SO2 + 2Cu + CO2
 		B.	2CuS + 3O2 + C → 2SO2 + 2Cu + CO
 		C.	2CuS + 3O2 + CO2 → 2SO2 + 2Cu
 		D.	2CuS + 6O2 + C → 2SO2 + 2Cu + CO2

joannablackwelder · Answer

Are they all the same except only one is balanced?

anonymous · Answer

The equations are a little different actually

joannablackwelder · Answer

You're right. Let me check on this one...

joannablackwelder · Answer

How did you come up with A or D?

anonymous · Answer

Just a guess because I feel like CO2 should be in the products.

joannablackwelder · Answer

Well, C doesn't work for sure because there is C in the reactants, but not in the products. I'm not sure about B yet, though.

joannablackwelder · Answer

Can you find any options that aren't balanced?

joannablackwelder · Answer

Those we can cross off the list.

anonymous · Answer

I think they're all balanced

joannablackwelder · Answer

I don't think so...

anonymous · Answer

oh B isn't balanced

joannablackwelder · Answer

Right. Any more?

anonymous · Answer

oh D isn't balanced either so it has to be A

joannablackwelder · Answer

That's what I get :)