WILL MARK BRAIINLIEST PLZ HELP ASAP
Balance the chemical equations below:

1) ___ n2 +___ h2>___nh3
2)___ klclo3 ->___kcl + __ o2
3)___ nacl +___ f2--->___ naF +___cl2

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.