Sodium carbonate can be made to react with carbon in the presence of nitrogen gas to produce sodium cyanide and carbon monoxide. How many moles of carbon are in the balanced equation?

Can someone help me write the equation. My answer was 10 moles of C but it's wrong. Any help is much appreciated

2 answers

about 10 seconds with google produced the equation

Na2CO3 + N2 + 4C = 2NaCN + 3CO
So then what is the answer because i got 10 but it is wrong and I'm so confused as to why