balance the following equations ok Na+CI2 =NaCI THEN Mg+N2?

Question

ok please answer this question how does a balanced chemical equation illustrate that mass is never lost or gained in a chemical reaction.

Answer 1

2 Na + Cl2 ==> 2 NaCl
3 Mg + N2 ==> Mg3N2

If you count the number of elements or molecules on the left side it will add up to the same number of elements or molecules that are on the right side. It is ASSUMED that mass is not gained or lost when writing balanced chemical equations, so that's how the balanced chemical equation illustrates that mass is never lost or gained in a chemical reaction: you write it that way.

Answer 2

no matter the reaction u do the same number of molecules u put in of each will show up in the products...
2Na+Cl2=2NaCl