Which of the following equations is balanced? question 2 options: na + 2cl2 → 2nacl na + cl2 → nacl 2na + cl2 → nacl 2na + cl2 → 2nacl

 The equation which is  balanced  is

2Na  + Cl2→  2  NaCl

 Explanation

According to the law  of mass   conservation in a chemical reaction, the  number  of atoms  in the reactants  side   must  be   equal  to    number of  atoms in  product  side.

The  reaction above  is balanced since   it  obey the  law of  mass conservation.

 for example  there  is  2 atoms of Na in  reactant  side and 2 atoms of Na  in  product side.