Can I please have help ASAP!!!! Will give 60 points to the correct answer and I will also mark Brainlest! If it's not to much to ask, also a explanation! :) Thanks in advance! :)
Which equation is balanced?
2Na + Cl2→NaCl

Na + Cl2→NaCl

2Na + Cl2→2NaCl

Na + 2Cl2→2NaCl