Here is the balanced symbol equation. 2Cu + O 2 → 2CuO You can see that now there are two copper atoms and two oxygen atoms on each side. This matches what happens in the reaction. Sometimes it ...
To balance an unbalanced equation, you need to add numbers to the left of one or more formulae. Here is one way to work out how to do this for the reaction between nitrogen and hydrogen.
A simple C# console program that can check if a chemical equation is balanced. If not, the program can also balance the equation itself ...